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CNE_MCQ

Total questions: 105

Worksheet time: 57mins

Name
Class
Date
1.

In TCP/IP model, which of the following information belongs to the Data link layer?

a)

Logical address

b)

Port number

c)

MAC address

d)

IP address

2.

Router command to set password "fithanu" to access privilege mode:

(a)  

3.

The correct order of layers in TCP/IP model is...

a)

Physical layer, Network layer, Data Link layer, Transport layer, Application layer

b)

b. Physical layer, Data Link layer, Network layer, Application layer, Transport layer

c)

Physical layer, Data Link layer, Transport layer, Network layer, Application layer

d)

Physical layer, Data Link layer, Network layer, Transport layer, Application layer

4.

In TCP, the receiver merges the data based on...

a)

Acknowledgement number

b)

Port number

c)

Sequence number

d)

Arriving number

5.

In TCP/IP model, which of the following information belongs to Network layer?

a)

Port number

b)

IP address

c)

Physical address

d)

MAC address

6.

Which of the following systems provides circuit switching service?

a)

telephone system

b)

postal system

7.

What is a correct netmask for a class C network?

a)

255.0.0.0

b)

0.0.0.255

c)

255.255.0.0

d)

255.255.255.0

8.

In UDP, the receiver merges the data based on...

a)

Arriving order

b)

Acknowledgement number

c)

Port number

d)

Sequence number

9.

Which of the following services is connection-oriented?

a)

UDP

b)

TCP

10.

In TCP/IP model, which of the following information belongs to the Transport layer?

a)

Physical address

b)

IP address

c)

MAC address

d)

Port number

11.

Router command to change Router's name to FIT-HANU

(a)  

12.

What is the command to set up static routing in Packet tracer?

a)

network

b)

ip address

c)

router

d)

ip route

13.

What application layer protocol is commonly used to support for file transfers between a client and a server?

a)

Telnet

b)

HTTP

c)

HTML

d)

FTP

14.

Which of the following protocols is used as inter-AS routing?

a)

PGP

b)

RIP

c)

OSPF

d)

BGP

15.

On which of the following protocols in Transport layer is SNMP (Simple Network Management Protocol) based?

a)

UDP

b)

TCP

16.

Which of the following describes the function of a WAN

a)

provides connectivity over a large geographic area

b)

connects multiple networks in a single building

c)

connects peripherals in a single location

d)

provides connectivity on a LAN

17.

You have a class A network address 10.0.0.0 with 40 subnets, but are required to add 60 new subnets very soon. You would like to still allow for the largest possible number of host IDs per subnet. Which subnet mask should you assign?

a)

255.240.0.0

b)

255.248.0.0

c)

255.252.0.0

d)

255.254.0.0

18.

Internet-like networks within an enterprise:

a)

Intranets

b)

Switching alternating

c)

Extarnets

d)

Inter organizational network

19.

On which layer does FTP work?

a)

Data Link Layer

b)

Application Layer

c)

Transport layer

d)

Network layer

20.

What is the first byte range of a class A network address

a)

0-127

b)

192-223

c)

1-127

d)

128-191

21.

In TCP/IP model, host-to-host delivery is in...

a)

Data Link layer

b)

Network layer

c)

Transport Layer

d)

Physical layer

22.

What is default port of SMTP service?

a)

80

b)

53

c)

25

d)

110

23.

If you ping fit.hanu.edu first time, where is the first place that your computer send request?

a)

Application sever

b)

Web server

c)

DHCP server

d)

DNS server

24.

Which of the following commands on Windows is used to test reachability of a remote host and show (the part of) the list of intermediary hops?

a)

tracert

b)

nslookup

c)

ping

d)

nmap

25.

What is socket address?

a)

Port number

b)

IP address+Port number

c)

IP address

d)

MAC address + port number

26.

which of following protocols uses distance vector routing algorithm?

a)

OSPF

b)

RIP

c)

EGD

d)

BGP

27.

When you ping the loopback address, where is a packet sent?

a)

Across the wire

b)

On the network

c)

Through the loopback dongle

d)

Down through the layers of the IP architecture and then up the layers again

28.

which of the following is used to show IP address of a host in Windows operating system

a)

ipconfigure

b)

ifconfigure

c)

ifconfig

d)

ipconfig

29.

How to establish a TCP connection?

a)

4-way handshake occurs

b)

5-way handshake occurs

c)

3-way handshake occurs

d)

2-way handshake occurs

30.

On Windows Server network operating system, what is often used to implement and administer some network services like web server, email server, FTP server?

a)

MMC

b)

IIS

c)

Hyper-V

d)

Active Directory

31.

In which layer does repeater work?

a)

Physical layer

b)

Network layer

c)

Data Link layer

d)

. Transport layer

32.

Router command to go to the global configuration mode to modify the running configuration manually from the terminal:

(a)  

33.

What is the command to show IP routing table?

(a)  

34.

How many fields are there in a header of IPv4 packet?

a)

16

b)

15

c)

13

d)

10

35.

Which of the following systems provide packet switching service?

a)

Portal system

b)

telephone system

36.

What part of 192.168.10.51 is the network ID, assuming a default subnet mask?

a)

192.168.10

b)

51

c)

192

d)

0.0.0.5

37.

which of following device is mainly designed to work at Data link layer?

a)

Switch

b)

Router

c)

Bridge

d)

Hub

38.

which of following device is more secure in term of network sniffing?

a)

switch

b)

hub

39.

the communication mode that supports two-way traffic but only one direction at a time is...

a)

half duplex

b)

simplex

c)

duplex

d)

multiplex

40.

In TCP/IP model, process-to-process delivery is in

a)

Data link layer

b)

Transport layer

c)

Network layer

d)

Physical layer

41.

what can greatly reduce IP address configuration problems?

a)

DHCP server

b)

WINS server

c)

FTP sever

d)

DNS server

42.

netmask is used to determine:

a)

IP address is in the subnet

b)

IP address is a server

c)

IP address is a gateway

d)

IP address is a DNS

43.

Which layer of OSI determines the interface of the system with the user?

a)

Application layer

b)

Network layer

c)

Session layer

d)

Data Link layer

44.

How to establish a TCP connection?

a)

4-way handshake occurs

b)

5-way handshake occurs

c)

3-way handshake occurs

d)

2-way handshake occurs

45.

What is default port of HTTP service?

a)

53

b)

20

c)

80

d)

110

46.

In VMware, ___________ configures your virtual machine to connect directly to the physical network.

a)

Custom networking

b)

Bridge

c)

Host-only networking

d)

NAT

47.

You are working with three networks that have the network IDs 192.168.5.0, 192.168.6.0, and 192.168.7.0. What subnet mask can you use to combine these addresses into one?

(a)  

48.

Which of the following layer protocols (TCP/IP model) are responsible for user and the application program support such as passwords, resource sharing, file transfer and network management?

a)

Layer 4 protocols

b)

Layer 2 protocols

c)

Layer 5 protocols

d)

Layer 3 protocols

49.

What can be identified by examining the network layer header?

a)

The destination host address

b)

The bits that will be transferred over the media

c)

The source application or process creating the data

d)

The destination device on the local media

50.

In Wireshark, write the Capture Filter to capture only http and dns packets:

(a)  

51.

Which of the following is used to show IP address of a host in Linux operating system?

a)

ipconfigure

b)

ifconfigure

c)

ipconfig

d)

ifconfig

52.

What is the first byte range of a class B network address?

a)

128-191

b)

1-126

c)

192-223

d)

0-127

53.

On which of the following protocols in Transport layer is FTP (File Transfer Protocol) mainly based?

a)

TCP

b)

UDP

54.

Which of the following device is mainly designed to work at Network layer?

a)

Repeater

b)

Router

c)

Hub

d)

Bridge

55.

A distributed network configuration in which all data/information pass through a central computer is...

a)

Ring network

b)

Bus network

c)

Point-to-point network

d)

Star network

56.

What is the automated service that matches resource names with the required IP address?

a)

Telnet

b)

SSH

c)

DNS

d)

HTTP

57.

How many fields are there in a header of IPv6 packet?

a)

7

b)

5

c)

9

d)

12

58.

What is a correct netmask for a class A network?

a)

255.255.0.0

b)

0.0.0.255

c)

255.255.255.0

d)

255.0.0.0

59.

How many bits are there in an IPv6 network address?

a)

128

b)

16

c)

32

d)

64

60.

Run command "ping 10.0.0.2", which of the following result shows the host 10.0.0.2 is reachable?

a)

Reply from 10.0.0.2: bytes=32 time<1ms TTL=64

b)

Default Gateway . . . . . . . . . : 10.0.0.2

c)

TCP localhost:4078 10.0.0.2:80 ESTABLISHED

d)

IP Address . . . . . . . . . : 10.0.0.2

61.

Which of the following TCP/IP protocol is used for transferring electronic mail messages from one machine to another?

a)

SNMP

b)

SMTP

c)

OSPF

d)

FTP

62.

Which of the following is the address of the router?

a)

The default gateway

b)

The IP address

c)

The subnet mask

d)

. The TCP address

63.

In which layer does repeater work?

a)

Physical layer

b)

Transport layer

c)

Network layer

d)

Data Link layer

64.

Which of the following statements are correct about RIP?

a)

uses a multicast address to update other routers every 90 seconds

b)

. will send out an update if there is a failure of a link

c)

uses a broadcast to update all other routers in the network every 60 seconds

d)

updates only contain information about routes that have changed since last update

65.

What is default port of POP3 service?

a)

25

b)

53

c)

80

d)

110

66.

Which type of cable is often used to connect a computer and a switch?

a)

Straight-through cable

b)

Optical fiber cable

c)

Cross-over cable

d)

Coaxial cable

67.

Which layer of OSI determines the interface of the system with the user?

a)

Data Link layer

b)

Application layer

c)

Session layer

d)

Network layer

68.

What does VLAN stand for

a)

Virtual LAN

b)

Variable LAN

c)

Vector LAN

d)

Video LAN

69.

You are working with a network that has the network ID 192.168.10.0. What subnet should you use that supports up to 25 hosts and a maximum number of subnets?

(a)  

70.

__________ is a security scanner used to discover computers and services on a computer network

a)

ping

b)

netstat

c)

tracert

d)

nmap

71.

__________ displays network connections (both incoming and outgoing), routing tables, and a number of network interface statistics.

a)

nmap

b)

tracert

c)

netstat

d)

DNS

72.

On which layer does FTP work?

a)

Network layer

b)

Transport layer

c)

Data link layer

d)

Application layer

73.

Switch command to show VLANs information:

(a)  

74.

Which address is the loopback address?

a)

255.255.255.255

b)

127.0.0.1

c)

127.0.0.0

d)

0.0.0.1

75.

What is the first byte range of a class C network address?

a)

0-127

b)

1-126

c)

128-191

d)

192-223

76.

How far can a twisted pair cable be extended?

a)

100km

b)

50km

c)

100m

d)

5km

77.

What is the command to restart Apache2 web server on Ubuntu Linux?

a)

sudo /etc/init.d/apache2 restart

b)

su /etc/init.d/apache2 restart

c)

sudo /etc/init.d/apache2 start

d)

su /etc/init.d/apache2 start

78.

What is the automated service that matches resource names with the required IP address?

a)

DNS

b)

HTTP

c)

Telnet

d)

SSH

79.

Which of the following device is mainly designed to work at Data link layer?

a)

Router

b)

Bridge

c)

Switch

d)

Hub

80.

What is default port of FTP service?

a)

21

b)

53

c)

25

d)

80

81.

What is default port of DNS service?

a)

20

b)

22

c)

53

d)

21

82.

What is default port of HTTP service?

a)

80

b)

110

c)

22

d)

53

83.

What is the purpose of the TTL field in the IP header?

a)

limits the time or hops that a packet can traverse through the network before it should be discarded

b)

used to mark routes as unreachable in updates sent to other routers

c)

defines a maximum metric value for each distance vector routing protocol by setting a maximum hop count

d)

prevents a router from advertising a network through the interface from which the update came

e)

prevents regular update messages from reinstating a route that may have gone bad

84.

The purpose of this equipment is to convert analog signals into digital signals and vice versa to be transmitted over a computer network.

a)

Repeater

b)

Hub

c)

Switch

d)

Modem

85.

Proxy servers work on ____________ of the OSI model.

a)

Data link layer

b)

Application layer

c)

Network layer

d)

Transport layer

86.

Which of the following commands is used to download and install DHCP server (dhcp3-server) on Ubuntu Linux?

a)

sudo apt-get install dhcp3-server

b)

. sudo /etc/init.d/ dhcp3-server start

c)

sudo app-get install dhcp3-server

d)

sudo get install dhcp3-server

87.

What is default port of FTP service?

a)

80

b)

21

c)

25

d)

53

88.

Intranets and extranets can use their network fire walls and other security features to establish secure Internet links within an enterprise or with its trading partners. Select the best fit for answer:

a)

Network Operating System

b)

Virtual Private Network

c)

Network Server

d)

OSI

89.

The correct order of layers in OSI model is...

a)

Physical layer, Network layer, Data Link layer, Session layer, Transport layer, Presentation layer, Application layer

b)

Physical layer, Data Link layer, Network layer, Presentation layer, Application layer, Session Layer, Transport layer

c)

Physical layer, Data Link layer, Network layer, Transport layer, Session layer, Presentation layer Application layer

d)

Physical layer, Session layer, Data Link layer, Transport layer, Presentation, Network layer, Application layer

90.

What is default port of IMAP service?

a)

443

b)

110

c)

80

d)

143

91.

ICMP (Internet Control Message Protocol) is...

a)

a protocol that handles error and control messages

b)

 TCP/IP protocol used to dynamically bind a high level IP Address to a low-level physical hardware address

c)

protocol used to monitor computers

d)

d. a TCP/IP high level protocol for transferring files from one machine to another

92.

What is default port of Telnet service?

a)

23

b)

53

c)

22

d)

21

93.

Identify the odd term amongst the following group:

a)

Microwaves

b)

Coaxial cable

c)

Twisted pair wire

d)

Optical fiber cable

94.

Which type of cable is often used to connect 2 routers together?

a)

Coaxial cable

b)

Straight-through cable

c)

Cross-over cable

d)

Optical fiber cable

95.

What is default port of SMTP service?

a)

110

b)

25

c)

53

d)

80

96.

What can be identified by examining the network layer header?

a)

The destination host address

b)

The destination device on the local media

c)

The bits that will be transferred over the media

d)

The source application or process creating the data

97.

Non adaptive algorithm is used in...

a)

Link state routing protocols

b)

Dynamic routing protocols

c)

Static routing protocols

d)

Distance vector routing protocols

98.

Which layer encapsulates the segment into packets?

a)

Network layer

b)

Data link layer

c)

Physical layer

d)

Transport layer

99.

In TCP/IP model, node-to-node delivery is in...

a)

Physical layer

b)

Data link layer

c)

Network layer

d)

Transport layer

100.

The physical layout of a computer network is known as...

a)

Protocol

b)

Topology

c)

Backbone

d)

Segment

101.

Frames from one LAN can be transmitted to another LAN via the device

a)

Bridge

b)

Route

c)

Repeater

d)

Modem

102.

The slowest transmission speeds are those of

a)

  twisted-pair wire

b)

coaxial cable

c)

fiber-optic cable

d)

microwaves

103.

What device separates a single network into two segments but lets the two segments appear as one to higher protocols?

a)

Switch

b)

Bridge

c)

Gateway

d)

Router

104.

Which of the following statement is incorrect?

a)

A.     The Addresses Resolution Protocol, ARP, allows a host to find the physical address of a target host on the same physical network, given only the target IP address.

b)

A.     The sender's IP - to- physical address binding is included in every ARP broadcast; receivers update the IP-to-Physical address binding information in their cache before processing an ARP packet.

c)

A.     ARP is a low-level protocol that hides the underlying network physical addressing, permitting us to assign IP-addresses of our choice to every machine.

d)

A.     All of the above

e)

A.     None of the above

105.

Because the configuration infor-mation for a DHCP client is received dynamically, you must use which utility to read the current configuration to verify the settings?

a)

ping

b)

tracert

c)

ARP

d)

ipconfig

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