Đề thi Mạng MáyTính - Mạng Căn Bản pot

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Đề thi Mạng Máy Tính 1.
Mạng Căn Bản.
Question 1
Điểm : /2
To send data through a network, what two flags are used to establish a session? (Choose two.)
Chọn ít nhất một câu trả lời

CRC
Port #
Seq #
Ack #
SYN
ACK

Question 2
Điểm : /2
Which OSI layer addressing is required to route packets between two networks?
Chọn một phương án trả lời.

Layer 2
Layer 3
Layer 1
Layer 4
Question 3
Điểm : /2
Refer to the exhibit. A PC is connected to a network. Which action will verify that the PC can communicate with its
default gateway?
Chọn một phương án trả lời.

Use the ping 10.0.0.254 command.

Use the ping 127.0.0.1 command.
Use the ipconfig/all command.
Use the ipconfig command.
Question 4
Điểm : /2
Refer to the exhibit. All routers in the network are configured with the correct IP addresses and routing protocol.
Host A sends a packet to host B. Which exhibited steps will be executed on each of the routers in the network?
Chọn một phương án trả lời.

Router R1 executes all six steps. Router R2 executes steps 1,2,3,4, and 6.
Routers R1 and R2 execute all six steps.
Router R1 executes steps 1,2,3,4, and 6. Router R2 executes all six steps.
Routers R1 and R2 execute steps 1, 2, 3, 4, and 6.
Question 5
Điểm : /2

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?
Chọn một phương án trả lời.

1.MUA 2.POP 3.MDA 4.SMTP 5.MTA 6.MDA 7.SMTP 8.MUA
1.MUA 2.MDA 3.MTA 4.SMTP 5.MTA 6.POP 7.MDA 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
Question 6
Điểm : /2
Which application belongs to the category of the client/server model?
Chọn một phương án trả lời.

using Telnet to access a router

exchanging information via instant messaging
scanning a document with a directly connected scanner
printing a document to a locally connected printer
Question 7
Điểm : /2
Which combination of network id and subnet mask correctly identifies all IP addresses from 172.16.128.0 through
172.16.159.255?
Chọn một phương án trả lời.

172.16.128.0 255.255.255.224
172.16.128.0 255.255.224.0
172.16.128.0 255.255.192.0
172.16.128.0 255.255.0.0
172.16.128.0 255.255.255.192
Question 8
Điểm : /2
Which statement is true about the ICMP protocol?
Chọn một phương án trả lời.

It is often filtered out of networks for security purposes.
It is designed to make IP a reliable protocol.
It is an application layer protocol.
If a host does not respond to an ICMP echo request, the host is not functioning.
Question 9
Điểm : /2

Refer to the exhibit. A host is connected to hub 1. Which combination of IP address, subnet mask, and default
gateway can allow this host to function in the network?
Chọn một phương án trả lời.

IP address: 172.16.31.63 Subnet mask: 255.255.255.224 Default gateway: 172.16.31.35
IP address: 172.16.31.37 Subnet mask: 255.255.255.224 Default gateway: 172.16.31.35
IP address: 172.16.31.32 Subnet mask: 255.255.255.224 Default gateway: 172.16.31.35
IP address: 172.16.31.36 Subnet mask: 255.255.255.240 Default gateway: 172.16.31.35
IP address: 172.16.31.29 Subnet mask: 255.255.255.248 Default gateway: 172.16.31.35
IP address: 172.16.31.29 Subnet mask: 255.255.255.240 Default gateway: 172.16.30.1
Question 10
Điểm : /2
Refer to the exhibit. Each media link is labeled. What type of cable should be used to connect the different devices?
Chọn một phương án trả lời.

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

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

Connection 1 - crossover cable
Connection 2 - rollover cable
Connection 3 - crossover cable

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

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

Question 11
Điểm : /2
A network technician is tasked with setting up a network for six users, but the users should be able to use their
accounts to log on from any of the six computers. What type of network should be used?
Chọn một phương án trả lời.

P2P applications
workgroup
client-server network
peer-to-peer network
Question 12
Điểm : /2
Which two types of media can provide bandwidth up to 1 Gb/s? (Choose two.)
Chọn ít nhất một câu trả lời

1000 BASE-SX
10 BASE-T
100 BASE-FX
1000 BASE-TX
100 BASE-T
Question 13
Điểm : /2
Which service is used when the nslookup command is issued on a computer?
Chọn một phương án trả lời.

DNS
FTP
DHCP
Telnet
Question 14

Điểm : /2

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?
Chọn một phương án trả lời.

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
It will drop the packet.
Question 15
Điểm : /2
During the encapsulation process, what identifiers are added at the transport layer?
Chọn một phương án trả lời.

source and destination IP addresses
source and destination port numbers
source and destination MAC addresses
source and destination channel identifiers
Question 16
Điểm : /3
Refer to the exhibit. What three statements are true about the IP configuration that is shown? (Choose three.)
Chọn ít nhất một câu trả lời

The network of this computer can have 126 hosts.
The IP address that is assigned to the computer is routable on the Internet.
The computer is unable to communicate outside of the local network.
The address that is assigned to the computer represents private addressing.
The prefix of the computer address is /27.
The IP address that is assigned to the computer is a broadcast address.

Question 17
Điểm : /2

Refer to the exhibit. The tracert command is initiated from PC1 to PC4. Which device will send a response to the
initial tracert packet from PC1?
Chọn một phương án trả lời.

PC4
Ankara
Athens
Paris
London
Question 18
Điểm : /2
An organization has been assigned network ID 10.10.128.0 and subnet mask 255.255.224.0. Which IP address
range can be used for this organization?
Chọn một phương án trả lời.

10.10.128.0 to 10.10.160.255
10.10.128.0 to 10.10.0.159
10.10.128.0 to 10.10.159.255
10.10.128.0 to 10.10.159.0
10.10.128.0 to 10.10.192.255
Question 19
Điểm : /2

Refer to the exhibit. Which option correctly identifies the network address, range of host addresses, and the
broadcast address for the network that contains host A?
Chọn một phương án trả lời.

chon

Question 20
Điểm : /2

Refer to the exhibit. Host A is requesting a web page from the web server. Which option represents the socket to
which the request is made?
Chọn một phương án trả lời.

10.0.0.130:80
www.cisco.com
10.0.0.130
80
Question 21
Điểm : /2
Refer to the exhibit. A PC is communicating with another PC on a remote network. The two networks are
connected by three routers. Which action will help to identify the path between the hosts?
Chọn một phương án trả lời.

Use the tracert command at the host.
Use the ping command at the destination.
Use the ipconfig command at the host.
Use the ipconfig/all command at the destination.
Question 22
Điểm : /2

Refer to the exhibit. Which layered network model is shown in the diagram?
Chọn một phương án trả lời.

TCP/IP

OSI
IETF
Cisco
Question 23
Điểm : /2
A network administrator is asked to design a new addressing scheme for a corporate network. There are 60 users in
the main office, 40 users in the branch office, 28 users in manufacturing, 12 in the sales office, and 4 users in the
research office. Which VLSM addressing scheme that uses the 192.168.88.0/24 network will fulfill the
requirements while wasting the fewest addresses?
Chọn một phương án trả lời.

192.168.88.0/26 main
192.168.88.64/26 branch
192.168.88.128/27 manufacturing
192.168.88.160/28 sales
192.168.88.176/29 research

192.168.88.0/27 main
192.168.88.64/28 branch
192.168.88.80/28 manufacturing
192.168.88.96/29 sales
192.168.88.104/30 research

192.168.88.0/27 main
192.168.88.32/27 branch
192.168.88.64/28 manufacturing
192.168.88.80/29 sales
192.168.88.88/30 research

192.168.88.0/26 main

192.168.88.32/26 branch
192.168.88.64/26 manufacturing
192.168.88.96/27 sales
192.168.88.128/28 research
Question 24
Điểm : /2
Refer to the exhibit. Host A is able to access resources on the local LAN but is unable to access any resources on
the Internet. What is the likely cause of this problem?
Chọn một phương án trả lời.

The host address is a network address.
The network uses private addresses.
The host subnet mask in incorrect.
The default gateway is on a different subnet from the host.
Question 25
Điểm : /2
Refer to the exhibit. A network technician is trying to determine the correct IP address configuration for Host A.
What is a valid configuration for Host A?
Chọn một phương án trả lời.

IP address: 192.168.100.20; Subnet Mask: 255.255.255.240; Default Gateway: 192.168.100.17
IP address: 192.168.100.22; Subnet Mask: 255.255.255.240; Default Gateway: 10.1.1.5
IP address: 192.168.100.30; Subnet Mask: 255.255.255.240; Default Gateway: 192.168.1.1
IP address: 192.168.100.19; Subnet Mask: 255.255.255.248; Default Gateway: 192.16.1.2
IP address: 192.168.100.21; Subnet Mask: 255.255.255.248; Default Gateway: 192.168.100.18
IP address: 192.168.100.31; Subnet Mask: 255.255.255.240; Default Gateway: 192.168.100.18
Question 26
Điểm : /2

Refer to the exhibit. Communication for hosts X and Y is restricted to the local network. What is the reason for

this?
Chọn một phương án trả lời.

The gateway addresses are broadcast addresses.
Host X is assigned a network address.
Host Y is assigned a multicast address.
Host X and host Y belong to different networks.
Question 27
Điểm : /2
Refer to the exhibit. Host A uses router A as its default gateway. If host A sends an ICMP echo request to
172.16.10.0, what ICMP response will host A receive.
Chọn một phương án trả lời.

route redirection
source quench
destination unreachable
echo reply
Question 28
Điểm : /2
Which TCP/IP model layer creates additional overhead on network resources due to acknowledgments, tracking,
and retransmission of data?
Chọn một phương án trả lời.

internet
application
network access
transport
Question 29
Điểm : /2
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?
Chọn một phương án trả lời.
The IP address at the serial 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 fa0/0 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.
Question 30
Điểm : /2
Refer to the exhibit. What function does router RT_A need to provide to allow Internet access for hosts in this
network?
Chọn một phương án trả lời.

web server
address translation
DHCP services
ftpd
Question 31
Điểm : /2
Which option shows how a router will route packets to a remote network?
Chọn một phương án trả lời.


chon
Question 32
Điểm : /2
Which two functions of the OSI model occur at layer two? (Choose two.)
Chọn ít nhất một câu trả lời

routing

media access control
cabling
physical addressing
encoding
Question 33
Điểm : /2

Refer to the exhibit. All devices in the network use default configurations. How many broadcast domains are there
in this topology?
Chọn một phương án trả lời.

9
11
7
5
3
Question 34
Điểm : /2
Refer to the exhibit. Assume all devices are using default configurations. How many subnets are required to address
the topology that is shown?
Chọn một phương án trả lời.

5
4
7
1
3
Question 35
Điểm : /2

Refer to the exhibit. Host C is able to ping 127.0.0.1 successfully, but is unable to communicate with hosts A and B
in the organization. What is the likely cause of the problem?
Chọn một phương án trả lời.

Hosts A and B are not on the same subnet as host C.
The subnet mask on host C is improperly configured.
The FastEthernet interface fa0/0 of router 1 is wrongly configured.
The IP addresses on the router serial interfaces are wrong.
Question 36
Điểm : /2

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.)
Chọn ít nhất một câu trả lời

The cable is unusable and must be rewired.
The cable is suitable for connecting a switch to a router Ethernet port.
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.
The cable is suitable for connecting dissimilar types of devices.
Question 37
Điểm : /2
What information can be gathered by using the command netstat?
Chọn một phương án trả lời.

active TCP connections
the locally configured subnet mask
the default gateway
the routing protocol
Question 38

Điểm : /2
Refer to the exhibit. Host A is configured with the correct IP address for the default gateway of the router R1
FastEthernet0/1 interface. How will a packet that is sent from host A to host B be handled by the devices on the
network?
Chọn một phương án trả lời.
R1 will forward the packet to its default gateway, the next hop router R2. R2 will forward the packet to the directly
connected network 10.1.1.0/24.
R1 will drop the packet because R1 does not have a specific route in its routing table to the 10.1.1.0/24 network.
R1 will forward the packet to its default gateway, the next hop router R2. R2 will drop the packet because it does
not have a route that is learned by a routing protocol to network 10.1.1.0/24.
R1 will forward the packet to its default gateway, the next hop router R2. R2 will drop the packet because it does
not have a default route to network 10.1.1.0/24.
Question 39
Điểm : /2
Which device should be used for enabling a host to communicate with another host on a different network?
Chọn một phương án trả lời.

hub
router
host
switch
Question 40
Điểm : /2

Refer to the exhibit. Which list refers only to end devices?
Chọn một phương án trả lời.

A,H,B,C
A,D,E,G
A,D,E,F

D,E,F,G
Question 41
Điểm : /2
Refer to the exhibit. Which type of network design is shown?
Chọn một phương án trả lời.

client/server
peer-to-peer
wide area
dedicated server
Question 42
Điểm : /2
What information is contained in the header of Layer 3 to help data delivery?
Chọn một phương án trả lời.

port number
destination host logical address
device physical address
virtual connection identifier
Question 43
Điểm : /2

Refer to the exhibit. Which two layers of the OSI model describe the same functions as the transport and internet
layers of the TCP/IP model? (Choose two.)
Chọn ít nhất một câu trả lời

application layer
physical layer
presentation layer
data link layer

session layer
transport layer
network layer
Question 44
Điểm : /3
Refer to the exhibit. A host is using NAT to connect to the Internet. Which three IP addresses enable this
connection? (Choose three.)
Chọn ít nhất một câu trả lời

10.1.1.32
10.1.1.37
10.1.1.63
10.1.1.2
10.1.1.60
10.1.1.39
Question 45
Điểm : /2
A network technician has made a UTP cable that is terminated as T568A on one end and T568B on the opposite
end. What type of cable has been constructed?
Chọn một phương án trả lời.

console
straight-through
crossover
patch
Question 46
Điểm : /2
Which range of port numbers are reserved for services that are commonly used by applications that run on servers?
Chọn một phương án trả lời.

0 to 1023
49152 to 65535
1024 to 49151
0 to 255
Question 47
Điểm : /2
When connectionless protocols are implemented at the lower layers of the OSI model, what is usually used to
acknowledge that the data was received and to request the retransmission of missing data?
Chọn một phương án trả lời.

a connectionless acknowledgement
Ethernet
IP
UDP
an upper-layer, connection-oriented protocol or service
Question 48
Điểm : /3
Which of the following are the address ranges of the private IP addresses? (Choose three.)
Chọn ít nhất một câu trả lời

200.100.50.0 to 200.100.25.255
150.150.0.0 to 150.150.255.255
172.16.0.0 to 172.31.255.255
10.0.0.0 to 10.255.255.255
192.168.0.0 to 192.168.255.255
127.16.0.0 to 127.31.255.255
Question 49
Điểm : /3
Which three IPv4 addresses represent subnet broadcast addresses? (Choose three.)
Chọn ít nhất một câu trả lời

192.168.4.191 /26
192.168.4.221 /27
192.168.4.95 /27
192.168.4.129 /26
192.168.4.51 /27
192.168.4.63 /26
Question 50
Điểm : /2

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?
Chọn một phương án trả lời.

192.31.7.1
10.1.192.1
10.1.192.2
10.1.192.54