22. What header address information does a router change in the information it receives from an attached Ethernet interface before information is transmitted out another interface?
the Layer 2 source and destination address

Refer to the exhibit. Host A wants to access e-mail. Which destination socket number will be used to communicate this request?

10.10.1.3:25
2Refer to the exhibit. The tracert command used from host X to host Y was successful. What is the correct sequence of intermediary network devices that will be present in the trace list?

router B, router E, router F, host Y

3Which OSI layer uses the header information to reassemble the data segments into streams?

transport layer
4
A network administrator uses the copy startup-config running-config command on a router to make configuration changes. Which component is affected by this command?

NVRAM
5

transport layer

Dung

6

Refer to the exhibit. The router of the company failed and was replaced. After the replacement, hosts C and D in the Education office are able to ping each other, but they are unable to access the hosts in the Accounts office. What is the likely cause of the problem?

The subnet mask at the fa0/1 interface of the router is incorrectly entered.

7
Which range of port numbers is assigned dynamically to client applications when initiating a connection to the server?

49152 to 65535

8

Refer to the exhibit. The NAT functionality of the router is enabled to provide the PC with Internet access. Which IP address can be assigned to router interface Fa0/0?

192.168.1.1

9
What information is contained in the header of Layer 3 to help data delivery?

destination host logical address

10

Connection 1 – crossover cable Connection 2 – straight-through cable Connection 3 – crossover cable

11
What are two characteristics of the data link layer? (Choose two.)

It exchanges the frames between nodes.

It manages the transfer of data between the processes that run on each host.

12
To enhance security in a network, the network administrator uses these commands:

Router(config)# line console 0
Router(config-line)# password j1mdi2
Router(config-line)# login

What two conclusions are evident from these commands? (Choose two.)

Users who attempt to connect to the console port of the router must enter a password.

The entries permit access through the console by the use of j1mdi2 as the password.

13
Which memory contents will change as a result of using the Router# erase startup-config command on a router?

NVRAM

14
Which OSI layer manages data segments?

transport layer

15
Which device should be used for enabling a host to communicate with another host on a different network?

router

16

Refer to the exhibit. A network technician wants to connect host A to the console of a Cisco switch to initialize the configuration. What type of cable is required for this connection?

rollover cable

17

Refer to the exhibit. A user wants to view the current configuration. The output of the ipconfig/all command is displayed in the exhibit. What three facts can be determined from the output? (Choose three.)

This PC cannot communicate with other networks.

The network can have 14 hosts.

The assigned address is a private address.
Khong nhin thay hinh (chua check)
18
Refer to the exhibit. Cable 1 and Cable 2 are wired for specific physical layer requirements. The table lists each segment by number and the cable that connects the network components on that segment. Which three segments have the correct cables installed? (Choose three.)

segment 1

segment 4

segment 5

19

Refer to the exhibit. A PC is connected to a network. Which action will verify that the PC can communicate with its default gateway?

Use the ping 10.0.0.254 command.

20
Which three statements are true about transport layer protocols? (Choose three.)

The UDP transport layer protocol provides for low overhead data delivery.

The TCP transport layer protocol uses windowing and acknowledgments for reliable transfer of data.

The TCP and UDP port numbers are used by application layer protocols.

21

Refer to the exhibit. A router, the table of which is shown, receives a packet that is destined for 192.168.9.4. How will the router treat the packet?

It will drop the packet.

22

Refer to the exhibit. A technician uses the nslookup command on the PC and views the output that is displayed in the exhibit. What does abc.xyz.local in the output represent? (Choose two.)

the primary domain name server for the host

the IP address of the website resolver1.abc.local

Sai. Dung la 4,5

23
How does the transport layer allow a host to maintain multiple, simultaneous communication streams across different applications?

It uses multiple ports.

24

Refer to the exhibit. While configuring a network, a technician wired each end of a Category 5e cable as shown. Which two statements are true about this setup? (Choose two.)

The cable is suitable for connecting a switch to a router Ethernet port.

The cable is suitable for connecting dissimilar types of devices.

25
A network administrator wants to restrict access to the router privileged EXEC mode. Which password should the administrator use?

enable

26
Which three IPv4 addresses represent valid network addresses for a subnet? (Choose three.)

192.168.9.64/28

192.168.9.96/28

192.168.9.64/26

27

Refer to the exhibit. The network administrator uses the netstat command to display the open, active, and running TCP connections on a networked host. The exhibit displays the output of this command. Which two facts can be determined from this output for accessing www.cisco.com? (Choose two.)

The source port of the host is 3166.

The destination port is 80.

28
Which two types of media can provide bandwidth up to 1 Gb/s? (Choose two.)

1000 BASE-TX

1000 BASE-SX

29

Refer to the exhibit. The diagram represents the process of sending e-mail between clients. Which list correctly identifies the component or protocol used at each numbered stage of the diagram?

1.MUA 2.SMTP 3.MTA 4.SMTP 5.MTA 6.MDA 7.POP 8.MUA

30

Refer to the exhibit. Host A is transmitting data to host B. Which address combination will be used as the data leaves the Router1 Fa0/1 interface?

Destination IP: 192.168.10.4 Source MAC: 0030.8596.DE81

31

Refer to the exhibit. RouterB is configured properly. The Ethernet interface Fa0/0 of RouterA is configured with the use of the commands that are shown. However, a ping from the Fa0/0 interface of RouterA to the Fa0/0 interface of RouterB is unsuccessful. What action should be taken on RouterA to solve this problem?

Use the no shutdown command on the FastEthernet interface Fa0/0.

32

Refer to the exhibit. Which two facts can be determined about the topology? (Choose two.)

Four collision domains are present.

Two broadcast domains are present.

33

Refer to the exhibit. An employee wants to access the organization intranet from home. Which intermediary device should be used to connect the organization intranet to the Internet to enable this access?

router

34
Which subnet mask will allow 2040 hosts per subnet on the IP network 10.0.0.0?

255.255.248.0

35
While configuring a router, a network technician wants to name the router. Which prompt should the technician see when entering the hostname command?

Router(config)#

36
An organization has decided to use IP addresses in the range 172.20.128.0 to 172.20.143.255. Which combination of network ID and subnet mask identifies all IP addresses in this range?

Network ID: 172.20.128.0 Subnet mask: 255.255.240.0

37

Refer to the exhibit. The host was disconnected from switch 2 and connected to switch 1. Which combination of IP address, subnet mask, and default gateway should be assigned to this host to allow it to function in the network?

IP address: 10.10.9.37 Subnet mask: 255.255.255.224 Default gateway: 10.10.9.35

38

Refer to the exhibit. Host A wants to connect to host B on a different network. Which three IP addresses can be assigned to host A to enable this connectivity? (Choose three.)

172.16.11.88

172.16.11.70

172.16.11.67

39
What are three characteristics of CSMA/CD? (Choose three.)

Devices listen to the media and transmit data only when they cannot detect another signal on the media.

Devices communicate based on a configured priority.

When a collision occurs, all devices stop transmitting for a randomly generated period of time.

40

Refer to the exhibit. Host A attempts to establish a TCP/IP session with host C. During this attempt, a frame was captured at the FastEthernet interface fa0/1 of router Y. The packet inside the captured frame has the IP source address 172.16.1.5, and the destination IP address is 172.16.7.24. What is the source MAC address of the frame at the time of capture?

0060.7320.B826

41
Which three statements are true about network layer addressing? (Choose three.)

It supports data communications between networks.

It prevents broadcasts.

It uniquely identifies each host.

42

Refer to the exhibit. A user wants to access the Internet from the PC. A part of the running configuration of the router is shown. Which default gateway IP address should be configured at the PC to enable this access?

10.1.192.1

43

Refer to the exhibit. All devices in the network use default configurations. How many broadcast domains are there in this topology?

5

44

Refer to the exhibit. Host A sends a frame with the destination MAC address as FFFF.FFFF.FFFF. What action will the switch take for this frame?

It will send the frame to all hosts except host A.

45
Two routers are connected via their serial ports in a lab environment. The routers are configured with valid IP addresses, but they cannot ping each other. The show interface serial0/0 command shows that the serial0/0 interface is up but the line protocol is down. What could be the cause of this problem?

The clock rate command has not been entered on the DCE interface.

46

Refer to the exhibit. Host A and B are unable to communicate with each other. What is the reason for this?

The gateway addresses are network addresses.

47

Refer to the exhibit. In a network, Hosts A and B are exchanging segments at the transport layer. Which two statements are true about this exchange? (Choose two.)

Host A is transferring files to host B using FTP.

Host A will send the next segment containing data for this session starting with byte number 11.

The segment from the destination host indicates that 11 bytes have been received successfully.

Host A is initiating a Telnet session to host B.

Host B can send the next segment of the data starting with byte number 2.

48

Refer to the exhibit. The network administrator remotely accesses the CLI of RouterB from PC1 using a secure connection. Which statement is true about this connection?

The SSH service is used to connect PC1 to RouterB.

49

Refer to the exhibit. Which logical topology describes the exhibited network?

ring

50
Which three addresses belong to the category of private IP addresses? (Choose three.)
10.0.0.1
172.16.0.1
192.168.0.1

thử nghe nha

CCNA1 – Module 9 V.4
Posted by KRON2529 | 1:41 AM
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1 In the graphic, Host A has reached 50% completion in sending a 1 KB Ethernet frame to Host D when Host B wishes to transmit its own frame to Host C. What must Host B do?
Host B can transmit immediately since it is connected on its own cable segment.
Host B must wait to receive a CSMA transmission from the hub, to signal its turn.
Host B must send a request signal to Host A by transmitting an interframe gap.
**Host B must wait until it is certain that Host A has completed sending its frame.

2 Ethernet operates at which layers of the OSI model? (Choose two.)
Network layer
Transport layer
**Physical layer
Application layer
Session layer
**Data-link layer

3 Which of the following describe interframe spacing? (Choose two.)
**the minimum interval, measured in bit-times, that any station must wait before sending another frame
the maximum interval, measured in bit-times, that any station must wait before sending another frame
the 96-bit payload padding inserted into a frame to achieve a legal frame size
the 96-bit frame padding transmitted between frames to achieve proper synchronization
**the time allowed for slow stations to process a frame and prepare for the next frame
the maximum interval within which a station must send another frame to avoid being considered unreachable

4 What three primary functions does data link layer encapsulation provide? (Choose three.)
**addressing
**error detection
**frame delimiting
port identification
path determination
IP address resolution

5 When a collision occurs in a network using CSMA/CD, how do hosts with data to transmit respond after the backoff period has expired?
**The hosts return to a listen-before-transmit mode. <—
The hosts creating the collision have priority to send data.
The hosts creating the collision retransmit the last 16 frames.
The hosts extend their delay period to allow for rapid transmission.

6 What are three functions of the upper data link sublayer in the OSI model? (Choose three.)
recognizes streams of bits
**identifies the network layer protocol
**makes the connection with the upper layers
identifies the source and destination applications
**insulates network layer protocols from changes in physical equipment
determines the source of a transmission when multiple devices are transmitting

7 What does the IEEE 802.2 standard represent in Ethernet technologies?
MAC sublayer
Physical layer
**Logical Link Control sublayer
Network layer

8 Why do hosts on an Ethernet segment that experience a collision use a random delay before attempting to transmit a frame?
A random delay is used to ensure a collision-free link.
A random delay value for each device is assigned by the manufacturer.
A standard delay value could not be agreed upon among networking device vendors.
**A random delay helps prevent the stations from experiencing another collision during the transmission.

9 Refer to the exhibit. Which option correctly matches the frame field type with the contents that frame field includes?
header field – preamble and stop frame
**data field – network layer packet
data field – physical addressing
trailer field – FCS and SoF

10 Host A has an IP address of 172.16.225.93 and a mask of 255.255.248.0. Host A needs to communicate with a new host whose IP is 172.16.231.78. Host A performs the ANDing operation on the destination address. What two things will occur? (Choose two.)
Host A will change the destination IP to the IP of the nearest router and forward the packet.
Host A will broadcast an ARP request for the MAC of its default gateway.
A result of 172.16.225.0 will be obtained.
**Host A will broadcast an ARP request for the MAC of the destination host.
A result of 172.16.224.0 will be obtained.
**A result of 172.16.225.255 will be obtained.

11 Which of the following is a drawback of the CSMA/CD access method?
**Collisions can decrease network performance.
It is more complex than non-deterministic protocols.
Deterministic media access protocols slow network performance.
CSMA/CD LAN technologies are only available at slower speeds than other LAN technologies.

12 Ethernet operates at which layer of the TCP/IP network model?
application
physical
transport
internet
data link
**network access

13 What is the primary purpose of ARP?
translate URLs to IP addresses
**resolve IPv4 addresses to MAC addresses
provide dynamic IP configuration to network devices
convert internal private addresses to external public addresses

14 Refer to the exhibit. The switch and workstation are administratively configured for full-duplex operation. Which statement accurately reflects the operation of this link?
**No collisions will occur on this link.
Only one of the devices can transmit at a time.
The switch will have priority for transmitting data.
The devices will default back to half duplex if excessive collisions occur.

15 Refer to the exhibit. Host_A is attempting to contact Server_B. Which statements correctly describe the addressing Host_A will generate in the process? (Choose two.)
A packet with the destination IP of Router_B.
A frame with the destination MAC address of Switch_A.
A packet with the destination IP of Router_A.
**A frame with the destination MAC address of Router_A.
**A packet with the destination IP of Server_B.
A frame with the destination MAC address of Server_B.

16 Which statements correctly describe MAC addresses? (Choose three.)
dynamically assigned
**copied into RAM during system startup
layer 3 address
**contains a 3 byte OUI
**6 bytes long
32 bits long

17 Which two features make switches preferable to hubs in Ethernet-based networks? (Choose two.)
reduction in cross-talk
**minimizing of collisions
support for UTP cabling
division into broadcast domains
**increase in the throughput of communications

18 What are the two most commonly used media types in Ethernet networks today? (Choose two.)
coaxial thicknet
**copper UTP
coaxial thinnet
**optical fiber
shielded twisted pair

19 Convert the binary number 10111010 into its hexadecimal equivalent. Select the correct answer from the list below.
85
90
**BA
A1
B3
1C

20 After an Ethernet collision, when the backoff algorithm is invoked, which device has priority to transmit data?
the device involved in the collision with the lowest MAC address
the device involved in the collision with the lowest IP address
**any device in the collision domain whose backoff timer expires first
those that began transmitting at the same time

1 Refer to the exhibit. What command will place the router into the correct mode to configure an appropriate interface to connect to a LAN?
UBAMA# configure terminal
UBAMA(config)# line vty 0 4
UBAMA(config)# line console 0
UBAMA(config)# interface Serial 0/0/0
**UBAMA(config)# interface FastEthernet 0/1

2 In a Cisco router, when do changes made to the running-configuration take effect?
after a system restart
as the commands are entered
when logging off the system
**when the configuration is saved to the startup-configuration

3 Refer to the exhibit. A technician applies the configuration in the exhibit to a clean router. To verify the configuration, the technician issues the show running-config command in the CLI session with the router. What lines should the technician expect to see in the router output from the show running-config command?
enable password class
line console 0
password ccna
enable secret cisco
enable password class
line console 0
password ccna
enable secret 5 $1$v0/3$QyQWmJyT7zCa/yaBRasJm0
enable password class
line console 0
password ccna
enable secret cisco
enable password 7 14141E0A1F17
line console 0
password 7 020507550A
**enable secret 5 $1$v0/3$QyQWmJyT7zCa/yaBRasJm0
enable password 7 14141E0A1F17
line console 0
password 7 020507550A

4 When network services fail, which port is most often used to access a router for management purposes?
AUX
Ethernet
**Console
Telnet
SSH

5 Refer to the exhibit. A network administrator on HostA has problems accessing the FTP server. Layer three connectivity testing was successful from HostA to the S1 interface of RouterB. Which set of commands will allow the network administrator to telnet to RouterB and run debug commands?
RouterB(config)# enable secret class
RouterB(config)# line vty 0 4
RouterB(config-if)# login
RouterB(config)# enable secret class
RouterB(config)# line vty 0 2
RouterB(config-vty)# password cisco
RouterB(config-vty)# login
**RouterB(config)# enable secret class
RouterB(config)# line vty 0
RouterB(config-line)# password cisco
RouterB(config-line)# login
RouterB(config)# enable secret class
RouterB(config)# line aux 0
RouterB(config-line)# password cisco
RouterB(config-line)# login
RouterB(config)# enable secret class
RouterB(config)# line aux 0
RouterB(config-vty)# password cisco
RouterB(config-vty)# login

6 Users in the network are experiencing slow response time when doing file transfers to a remote server. What command could be issued to determine if the router has experienced any input or output errors?
show running-config
show startup-config
**show interfaces
show ip route
show version
show memory

7 Refer to the exhibit. Which names correctly identify the CLI mode represented by the prompt for Switch-East4#? (Choose two.)
line configuration mode
user executive mode
**global configuration mode
privileged executive mode
interface configuration mode
**enable mode

8 What command is used to change the default router name to Fontana?
Router# name Fontana
Router# hostname Fontana
Router(config)# name Fontana
**Router(config)# hostname Fontana

9 The serial connection shown in the graphic needs to be configured. Which configuration commands must be made on the Sydney router to establish connectivity with the Melbourne site? (Choose three.)
**Sydney(config-if)# ip address 201.100.53.2 255.255.255.0
**Sydney(config-if)# no shutdown
Sydney(config-if)# ip address 201.100.53.1 255.255.255.224
**Sydney(config-if)# clock rate 56000
Sydney(config-if)# ip host Melbourne 201.100.53.2

10 Refer to the exhibit. The output is shown for the show ip route command executed on Router A. What does the IP address 192.168.2.2 represent?
Gateway for the 192.168.1.0 network
Gateway for the 192.168.3.0 network
IP assigned to the serial port on Router A
**IP assigned to the serial port on Router B

11 Refer to the exhibit. What additional command is required to allow remote access to this switch?
NA-SW1(config-if)# no shutdown
NA-SW1(config)# enable password password
**NA-SW1(config)# ip default-gateway address
NA-SW1(config-if)# description description

12 Immediately after a router completes its boot sequence, the network administrator wants to check the routers configuration. From privileged EXEC mode, which of the following commands can the administrator use for this purpose? (Choose two.)
show flash
show NVRAM
**show startup-config
**show running-config
show version

13 Which three terms correctly define the forms of help available within the Cisco IOS? (Choose three.)
hot keys
**context-check
context-sensitive
**structured check
command override
**command syntax check

14 Refer to the exhibit. A student is responsible for the IP addressing, configuration and connectivity testing of the network shown in the graphic. A ping from host B to host C results in a destination unreachable but a ping from host B to host A was successful. What two reasons could account for this failure based on the graphic and partial router output for the Dallas router? (Choose two.)
The host A is turned off.
The Fa0/0 interface on Dallas is shutdown.
The LAN cable is disconnected from host B.
**The S0/0/1 IP address of Dallas is improperly configured.
**The Fa0/0 interface on Dallas is in a different subnet than host B.
The clock rate is missing on the serial link between Dallas and NYC.

15 Which combination of keys would be used at the CLI prompt to interrupt a ping or traceroute process?
**Ctrl-C
Ctrl-P
Ctrl-R
Ctrl-Shift-6
Ctrl-Z

16 The connection between routers B and C has been successfully tested. However, after rebooting router C, the administrator noticed the response time between networks 10.10.3.0 and 10.10.4.0 is slower. Ping between the two routers is successful. A trace route indicates three hops from router B to router C. What else can be done to troubleshoot the problem?
Ping router B S0/1 connection from router C.
Trace the connection between router B to router C S0/1.
Issue a show ip route command in router B to verify routing is enabled.
**Issue a show interfaces command on router C.

17 In a Cisco device, where is the IOS file stored prior to system startup?
RAM
ROM
**Flash
NVRAM

18 On a Cisco router, which interface would be used to make the initial configuration?
toinen

19 A network administrator needs to keep the user ID, password, and session contents private when establishing remote CLI connectivity with a router to manage it. Which access method should be chosen?
Telnet
Console
AUX
**SSH

CCNA1 – Module 7 V.4

1 Which options are properties of contention-based media access for a shared media? (Choose three.)
**non-deterministic
**less overhead
one station transmits at a time
**collisions exist
devices must wait their turn
token passing

2 What is a primary purpose of encapsulating packets into frames?
provide routes across the internetwork
format the data for presentation to the user
**facilitate the entry and exit of data on media
identify the services to which transported data is associated

3 Refer to the exhibit. How many unique CRC calculations will take place as traffic routes from the PC to the laptop?
1
**2
4
8

4 What is true concerning physical and logical topologies?
The logical topology is always the same as the physical topology.
Physical topologies are concerned with how a network transfers frames.
Physical signal paths are defined by Data Link layer protocols.
**Logical topologies consist of virtual connections between nodes.

5 Refer to the exhibit. Assuming that the network in the exhibit is converged meaning the routing tables and ARP tables are complete, which MAC address will Host A place in the destination address field of Ethernet frames destined for www.server?
00-1c-41-ab-c0-00
**00-0c-85-cf-65-c0
00-0c-85-cf-65-c1
00-12-3f-32-05-af

6 What are three characteristics of valid Ethernet Layer 2 addresses? (Choose three.)
**They are 48 binary bits in length.
They are considered physical addresses.
**They are generally represented in hexadecimal format.
They consist of four eight-bit octets of binary numbers.
They are used to determine the data path through the network.
**They must be changed when an Ethernet device is added or moved within the network.

7 Refer to the exhibit. A frame is being sent from the PC to the laptop. Which source MAC and IP addresses will be included in the frame as it leaves RouterB? (Choose two.)
source MAC – PC
source MAC – S0/0 on RouterA
**source MAC – Fa0/1 on RouterB
**source IP – PC
source IP – S0/0 on RouterA
source IP – Fa0/1 of RouterB

8 What determines the method of media access control? (Choose two.)
network layer addressing
**media sharing
application processes
**logical topology
intermediary device function

9 What is the purpose of the preamble in an Ethernet frame?
is used as a pad for data
identifies the source address
identifies the destination address
marks the end of timing information
**is used for timing synchronization with alternating patterns of ones and zeros

10 What statements are true regarding addresses found at each layer of the OSI model? (Choose two.)
**Layer 2 may identify devices by a physical address burned into the network card
Layer 2 identifies the applications that are communicating
**Layer 3 represents a hierarchical addressing scheme
Layer 4 directs communication to the proper destination network
Layer 4 addresses are used by intermediary devices to forward data

11 Which statements describe the logical token-passing topology? (Choose two.)
Network usage is on a first come, first serve basis.
**Computers are allowed to transmit data only when they possess a token.
Data from a host is received by all other hosts.
**Electronic tokens are passed sequentially to each other.
Token passing networks have problems with high collision rates.

12 Which sublayer of the data link layer prepares a signal to be transmitted at the physical layer?
LLC
**MAC
HDLC
NIC

13 What is true regarding media access control? (Choose three.)
**Ethernet utilizes CSMA/CD
**defined as placement of data frames on the media
contention-based access is also known as deterministic
802.11 utilizes CSMA/CD
**Data Link layer protocols define the rules for access to different media
controlled access contains data collisions

14 What is a characteristic of a logical point-to-point topology?
The nodes are physically connected.
The physical arrangement of the nodes is restricted.
**The media access control protocol can be very simple.
The data link layer protocol used over the link requires a large frame header.

15 What two facts are true when a device is moved from one network or subnet to another? (Choose two.)
The Layer 2 address must be reassigned.
The default gateway address should not be changed.
**The device will still operate at the same Layer 2 address.
Applications and services will need additional port numbers assigned.
**The Layer 3 address must be reassigned to allow communications to the new network.

16 What is a function of the data link layer?
provides the formatting of data
provides end-to-end delivery of data between hosts
provides delivery of data between two applications
**provides for the exchange data over a common local media

17 Which three factors should be considered when implementing a Layer 2 protocol in a network? (Choose three.)
the Layer 3 protocol selected
**the geographic scope of the network
the PDU defined by the transport layer
**the physical layer implementation
**the number of hosts to be interconnected

18 What is the primary purpose of the trailer in a data link layer frame?
define the logical topology
provide media access control
**support frame error detection
carry routing information for the frame

19 A network administrator has been asked to provide a graphic representation of exactly where the company network wiring and equipment are located in the building. What is this type of drawing?
logical topology
**physical topology
cable path
wiring grid
access topology

20 Refer to the exhibit. Which statement describes the media access control methods that are used by the networks in the exhibit?
All three networks use CSMA/CA
None of the networks require media access control.
**Network 1 uses CSMA/CD and Network 3 uses CSMA/CA.
Network 1 uses CSMA/CA and Network 2 uses CSMA/CD.
Network 2 uses CSMA/CA and Network 3 uses CSMA/CD.

1 How many bits make up an IPv4 address?
128
64
48
32 **

2 Refer to the exhibit. A network administrator has to develop an IP addressing scheme that uses the 192.168.1.0 /24 address space. The network that contains the serial link has already been addressed out of a separate range. Each network will be allocated the same number of host addresses. Which network mask will be appropriate to address the remaining networks?
255.255.255.248
255.255.255.224
255.255.255.192 **
255.255.255.240
255.255.255.128
255.255.255.252

3 Refer to the exhibit. The network administrator has assigned the internetwork of LBMISS an address range of 192.168.10.0. This address range has been subnetted using a /29 mask. In order to accommodate a new building, the technician has decided to use the fifth subnet for configuring the new network (subnet zero is the first subnet). By company policies, the router interface is always assigned the first usable host address and the workgroup server is given the last usable host address. Which configuration should be entered into the workgroup server’s properties to allow connectivity to the network?
IP address: 192.168.10.38 subnet mask: 255.255.255.240 default gateway: 192.168.10.39
IP address: 192.168.10.38 subnet mask: 255.255.255.240 default gateway: 192.168.10.33
IP address: 192.168.10.38 subnet mask: 255.255.255.248 default gateway: 192.168.10.33 **
IP address: 192.168.10.39 subnet mask: 255.255.255.248 default gateway: 192.168.10.31
IP address: 192.168.10.254 subnet mask: 255.255.255.0 default gateway: 192.168.10.1

4 Refer to the exhibit. Which network prefix will work with the IP addressing scheme shown in the graphic.
/24
/16
/20
/27 **
/25
/28

5 Refer to the exhibit. A network administrator discovers that host A is having trouble with Internet connectivity, but the server farm has full connectivity. In addition, host A has full connectivity to the server farm. What is a possible cause of this problem?
The router has an incorrect gateway.
Host A has an overlapping network address.
Host A has an incorrect default gateway configured.
Host A has an incorrect subnet mask.
NAT is required for the host A network. **

6 What subnet mask would a network administrator assign to a network address of 172.30.1.0 if it were possible to have up to 254 hosts?
255.255.0.0
255.255.255.0 **
255.255.254.0
255.255.248.0

7 Given the IP address and subnet mask of 172.16.134.64 255.255.255.224, which of the following would describe this address?
This is a useable host address.
This is a broadcast address.
This is a network address. **
This is not a valid address.

8 What three facts are true about the network portion of an IPv4 address? (Choose three.)
identifies an individual device
is identical for all hosts in a broadcast domain
is altered as packet is forwarded **
varies in length **
is used to forward packets **
uses flat addressing

9 What is the network address of the host 172.25.67.99 /23 in binary?
10101100. 00011001.01000011.00000000
10101100. 00011001.01000011.11111111
10101100. 00011001.01000010.00000000 **
10101100. 00011001.01000010.01100011
10101100. 00010001.01000011. 01100010
10101100. 00011001.00000000.00000000

10 A router interface has been assigned an IP address of 172.16.192.166 with a mask of 255.255.255.248. To which subnet does the IP address belong?
172.16.0.0
172.16.192.0
172.16.192.128
172.16.192.160 **
172.16.192.168
172.16.192.176

11 Refer to the exhibit. Why would the response shown be displayed after issuing the command ping 127.0.0.1 on a PC?
The IP settings are not properly configured on the host. **
Internet Protocol is not properly installed on the host.
There is a problem at the physical or data link layer.
The default gateway device is not operating.
A router on the path to the destination host has gone down.

12 What two things will happen if a router receives an ICMP packet which has a TTL value of 1 and the destination host is several hops away? (Choose two.)
The router will discard the packet.
The router will decrement the TTL value and forward the packet to the next router on the path to the destination host.
The router will send a time exceeded message to the source host. **
The router will increment the TTL value and forward the packet to the next router on the path to the destination host.
The router will send an ICMP Redirect Message to the source host. **

13 Refer to the exhibit. An administrator is designing security rules for the 192.168.22.0 /24 network. Each security rule requires an address and mask pair to represent the machines that will be affected by the rule. Which two address and mask pairs will be the most precise way to reference the servers and hosts separately. (Choose two.)
192.168.22.40 255.255.255.248
192.168.22.40 255.255.255.252
192.168.22.100 255.255.255.128
192.168.22.100 255.255.255.254 **
192.168.22.1 255.255.255.192 **
192.168.22.101 255.255.255.224

14 Which of the following are features of IPv6? (Choose three.)
larger address space **
faster routing protocols
data types and classes of service **
authentication and encryption **
improved host naming conventions
same addressing scheme as IPv4

15 Which process do routers use to determine the subnet network address based upon a given IP address and subnet mask?
binary adding
hexadecimal anding
binary division
binary multiplication
binary ANDing **

16 What is the primary reason for development of IPv6?
security
header format simplification
expanded addressing capabilities **
addressing simplification

17 Which three IP addresses are private? (Choose three.)
172.168.33.1
10.35.66.70 **
192.168.99.5 **
172.18.88.90 **
192.33.55.89
172.35.16.5

18 Which statements are true regarding IP addressing? (Choose two.)
NAT translates public addresses to private addresses destined for the Internet.
Only one company is allowed to use a specific private network address space.
Private addresses are blocked from public Internet by router. **
Network 172.32.0.0 is part of the private address space.
IP address 127.0.0.1 can be used for a host to direct traffic to itself. **

19 Which IPv4 subnetted addresses represent valid host addresses? (Choose three.)
172.16.4.127 /26
172.16.4.155 /26 **
172.16.4.193 /26 **
172.16.4.95 /27
172.16.4.159 /27
172.16.4.207 /27 **

20 What is a group of hosts called that have identical bit patterns in the high order bits of their addresses?
an internet
a network **
an octet
a radi **

21 Refer to the exhibit. Host A is connected to the LAN, but it cannot get access to any resources on the Internet. The configuration of the host is shown in the exhibit. What could be the cause of the problem?
The host subnet mask is incorrect.
The default gateway is a network address.
The default gateway is a broadcast address.
The default gateway is on a different subnet from the host. **

22 Which of the following network devices are recommended to be assigned static IP addresses? (Choose three.)
LAN workstations
servers **
network printers **
routers **
remote workstations
laptops