Автор: SHARK в Ответы на тесты CISCO CCNA 1 v4 | Блог Связиста | Четверг 22 июля 2010
1.Refer to the exhibit. Host A attempts to establish a TSP/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?
2.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?
wireless access point
3.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: 255.255.255.240 Default gateway: 10.10.9.35
**IP address: 10.10.9.37 Subnet mask: 255.255.255.224 Default gateway: 10.10.9.35
IP address: 10.10.9.29 Subnet mask: 255.255.255.248 Default gateway: 10.10.9.35
IP address: 10.10.9.32 Subnet mask: 255.255.255.224 Default gateway: 10.10.9.35
IP address: 10.10.9.37 Subnet mask: 255.255.255.224 Default gateway: 220.127.116.11
IP address: 10.10.9.63 Subnet mask: 255.255.255.224 Default gateway: 10.10.9.35
4. Which range of port numbers is assigned dynamically to client applications when initiating a connection to the server?
0 to 255
**49152 to 65535
1024 to 49151
0 to 1023
5.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.MDA 3.MTA 4.SMTP 5.MTA 6.POP 7.MDA 8.MUA
1.MUA 2.POP 3.MDA 4.SMTP 5.MTA 6.MDA 7.SMTP 8.MUA
1.MUA 2.POP 3.SMTP 4.MDA 5.MTA 6.SMTP 7.POP 8.MUA
**1.MUA 2.SMTP 3.MTA 4.SMTP 5.MTA 6.MDA 7.POP 8.MUA
6. 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.
The cable is unusable and must be rewired.
The cable is terminated in a way that the transmit pin is wired to the receive pin.
The cable simulates a point-to-point WAN link.
7. Refer to the exhibit. Which two facts can be determined about the topology? (Choose two.)
**Four collision domains are present.
One logical network is represented.
**Two broadcast domains are present.
Three networks are needed.
Three logical address ranges are required.
8.Refer to exhibit. A technician uses the nslookup command on
the PC and views the output that is displayed in the exhibit. What is
the IP address of the primary domain name server used by the host?
9. Which subnet mask will allow 2040 hosts per subnet on the IP network 10.0.0.0?
10. Which three addresses belong to the category of private IP addresses? (Choose three.)
11.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: 192.168.72.2 Source MAC: 0007.C2B4.3421
**Destination IP: 192.168.10.4 Source MAC: 0030.8596.DE81
Destination IP: 192.168.10.4 Source MAC: 0007.C2B4.3421
Destination IP: 192.168.72.2 Source MAC: 0030.8596.DE81
12. Which memory contents will change as a result of using the Router# erase startup-config command on a router?
13. What are two characteristics of the data link layer? (Choose two.)
**It segments and reorders the data.
It exchanges the frames between nodes.
**It defines the method by which network devices place data onto the media.
It manages the transfer of data between the processes that run on each host.
It retrieves signals from the media and restores them to their bit representations.
14. 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?
15.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?
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?
17. A network administrator wants to restrict access to the
router privileged EXEC mode. Which password should the administrator
18. 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.
**All devices on the media can hear all communications.
Devices communicate based on a configured priority.
After a collision occurs, the devices that caused the collision have first priority when attempting to retransmit.
**When a collision occurs, all devices stop transmitting for a randomly generated period of time.
CSMA/CD uses a token system to avoid collisions.
19. 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 IP address at the fa0/0 interface of the router is incorrectly configured.
**The subnet mask at the fa0/1 interface of the router is incorrectly entered.
The IP address at the serial interface of the router is incorrectly configured.
The hosts in the Accounts office are not on the same subnet as the hosts in the Education office.
20. Refer to the exhibit. Host A and B are unable to communicate with each other. What is the reason for this?
Host A is assigned a network address.
Host B is assigned a multicast address.
Host A and host B belong to different networks.
**The gateway addresses are network addresses.
21. 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?
The IP address is obtained from the DHCP server.
**This PC cannot communicate with other networks.
**The network can have 14 hosts.
The prefix of the computer address is /25.
The IP address is routable on the Internet.
**The assigned address is a private address.
22. Which two types of media can provide bandwidth up to 1 Gb/s? (Choose two.)
23. 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 description command on the FastEthernet interface Fa0/0.
Configure the clock rate of the FastEthernet interface Fa0/0.
**Use the no shutdown command on the FastEthernet interface Fa0/0.
Reboot the router.
24. 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.)
25. Refer to the exhibit. Host A wants to access e-mail.
Which destination socket number will be used to communicate this
26. 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?
27. 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
28. How does the transport layer allow a host to maintain
multiple, simultaneous communication streams across different
It uses error control mechanisms.
**It uses a connectionless protocol only for multiple simultaneous transmissions.
It uses multiple Layer 2 source addresses.
It uses multiple ports.
29. What information is contained in the header of Layer 3 to help data delivery?
device physical address
**destination host logical address
virtual connection identifier
30. Refer 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?
switch A, switch D, switch G, host Y
**router B, router E, router F, host Y
switch A, router B, switch D, router E, router F, switch G, host Y
switch A, router B, router F, switch G, host Y
31. While configuring a router, a network technician wants to
name the router. Which prompt should the technician see when entering
the hostname command?
32. 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: 255.255.255.0
Network ID: 172.20.128.0 Subnet mask: 255.255.0.0
Network ID: 172.20.128.0 Subnet mask: 255.255.224.0
**Network ID: 172.20.128.0 Subnet mask: 255.255.240.0
Network ID: 172.20.128.0 Subnet mask: 255.255.255.240
33. Refer to the exhibit. Which logical topology describes the exhibited network?
34. Refer to the exhibit. All devices in the network use default
configurations. How many broadcast domains are there in this
35. Which three IPv4 addresses represent valid network addresses for a subnet? (Choose three.)
36. 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 no shutdown command has not been applied to the interfaces.
**The clock rate command has not been entered on the DCE interface.
The interface timers are not cleared.
The FastEthernet interface is emulating a serial interface by assigning it a timing signal.
37. Which device should be used for enabling a host to communicate with another host on a different network?
38. 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 indicates that the session is an http session.
The connection is not successful.
**The source port of the host is 3166.
The destination port is 80.
The source port does not support communication with the destination port that is listed.
The source port indicates that a UDP session has been initiated.
39. Which OSI layer uses the header information to reassemble the data segments into streams?
40. 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.
**The TCP transport layer protocol provides services to direct the data packets to their destination hosts.
The UDP transport layer protocol is a connection-oriented protocol.
The UDP transport layer protocol keeps track of all the data segments in each conversation.
41. To enhance security in a network, the network administrator uses these commands:
Router(config)# line console 0
Router(config-line)# password j1mdi2
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.
The entries eliminate the need for authentication.
Access through the console will be denied because the console configuration is incomplete.
The entries prevent passwords from being displayed as plain text.
42. Refer to the exhibit. Each media link is labeled. What type of cable should be used to connect the different devices?
Connection 1 – straight-through cable Connection 2 – straight-through cable Connection 3 – crossover cable
Connection 1 – straight-through cable Connection 2 – crossover cable Connection 3 – rollover cable
Connection 1 – crossover cable Connection 2 – rollover cable Connection 3 – straight-through cable
**Connection 1 – crossover cable Connection 2 – straight-through cable Connection 3 – crossover cable
Connection 1 – straight-through cable Connection 2 – rollover cable Connection 3 – crossover cable
43. Refer to the exhibit. The headers added at each layer are shown.
Which layer adds the destination and source process numbers to ensure that data is delivered to the correct application?
data link layer
44. Which three statements are true about network layer addressing? (Choose three.)
It uses the last octet of the IP address to identify the network.
**It supports data communications between networks.
**It is configured by the network technician.
It is a 16-bit IPv4 address.
It prevents broadcasts.
**It uniquely identifies each host.
45. Refer to the exhibit. A PC is connected to a network.
Which action will verify that the PC can communicate with its default
Use the ping 127.0.0.1 command.
Use the ipconfig command.
Use the ipconfig/all command.
**Use the ping 10.0.0.254 command.
46. 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 drop the frame.
It will send the frame back to host A.
**It will send the frame to all hosts except host A.
It will forward the frame to the default gateway.
47. 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 Telnet server process is running on PC1.
Only the exchange of the Telnet username and password is encrypted.
The GET request is sent to RouterA to retrieve data.
**The SSH service is used to connect PC1 to RouterB.
48. Which OSI layer uses the header information to reassemble the data segments into streams?
49. 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.
It will forward the packet via FastEthernet 0/1.
**It will forward the packet to the next hop address.
It will forward the packet to 172.16.2.0
50. 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?