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What is the purpose of DNS (Domain Name System)?

Question 1Select one:

a.
To translate domain names into IP addresses


b.
To provide secure remote access to a network


c.
To assign IP addresses to devices on a network


d.
To authenticate network devices

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The correct answer is:
To translate domain names into IP addresses

Question 2
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What is the protocol used for sending emails?

Question 2Select one:

a.
FTP


b.
POP3


c.
IMAP


d.
HTTP

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The correct answer is:
IMAP

Question 3
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Which network topology connects all devices in a ring formation?

Question 3Select one:

a.
Bus


b.
Star


c.
Ring


d.
Mesh

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The correct answer is:
Ring

Question 4
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What is the purpose of a MAC address?

Question 4Select one:

a.
To manage network switches and routers


b.
To encrypt network traffic


c.
To assign IP addresses to devices


d.
To identify a specific network interface card (NIC)

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The correct answer is:
To identify a specific network interface card (NIC)

Question 5
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Which protocol is used for secure remote access to a network?

Question 5Select one:

a.
SMTP


b.
SNMP


c.
FTP


d.
SSH

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The correct answer is:
SSH

Question 6
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What is the purpose of DHCP (Dynamic Host Configuration Protocol)?

Question 6Select one:

a.
To filter unwanted network traffic


b.
To assign IP addresses to devices on a network automatically


c.
To manage network switches and routers


d.
To authenticate network devices

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The correct answer is:
To assign IP addresses to devices on a network automatically

Question 7
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What is the purpose of an IP address?

Question 7Select one:

a.
To assign a unique identifier to a device on a network


b.
To protect against malware


c.
To establish a wireless connection


d.
To identify a specific website

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The correct answer is:
To assign a unique identifier to a device on a network

Question 8
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Which protocol is used to transfer web pages from a web server to a client's browser?

Question 8Select one:

a.
FTP


b.
DNS


c.
HTTP


d.
Telnet

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The correct answer is:
HTTP

Question 9
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Which network topology requires a central device for all devices to connect?

Question 9Select one:

a.
Ring


b.
Star


c.
Mesh


d.
Bus

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The correct answer is:
Star

Question 10
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What is the standard security protocol used to encrypt data over the internet?

Question 10Select one:

a.
TLS


b.
VPN


c.
SSL


d.
SSH

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The correct answer is:
TLS

Question 11
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Which device is specifically designed to connect multiple computers in a network and forward data packets between them?

Question 11Select one:

a.
Modem


b.
Firewall


c.
Switch


d.
VPN

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The correct answer is:
Switch

Question 12
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آی پی ورژن ۶ چند بیتی است؟

Question 12Select one:

a.
64


b.
128


c.
32


d.
16

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The correct answer is:
128

Question 13
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Which network protocol is used for transferring files between computers?

Question 13Select one:

a.
SSH


b.
SMTP


c.
FTP


d.
DNS

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The correct answer is:
FTP

Question 14
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select the Mesh Topology

Question 14Select one:

a.
all computer connect to a router


b.
each computer and network device is interconnected with one another


c.
one computer connect to each computer


d.
A and C is correct

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The correct answer is:
each computer and network device is interconnected with one another

Question 15
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what is Disadvantages of Mesh Topology

Question 15Select one:

a.
Manages high amounts of traffic, because multiple devices can transmit data simultaneously


b.
A failure of one device does not cause a break in the network or transmission of data.


c.
The cost to implement is higher than other network topologies.


d.
Adding additional devices does not disrupt data transmission between other devices.

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The correct answer is:
The cost to implement is higher than other network topologies.

Question 16
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What is the function of SMTP protocol?


Question 16Select one:

a.
Error checking


b.
Sending and receiving e-mails


c.
Data packaging


d.
Communicate with the router

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The correct answer is:
Sending and receiving e-mails

Question 17
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Which device is primarily responsible for directing network traffic?

Question 17Select one:

a.
Modem


b.
Bridge


c.
Hub


d.
Router

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The correct answer is:
Router

Question 18
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What do the letters LAN stand for in computer networking?

Question 18Select one:

a.
Link Area Network


b.
Longitudinal Access Node


c.
Local Access Network


d.
Local Area Network

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The correct answer is:
Local Area Network