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Networking Quiz

Total questions: 30

Worksheet time: 15mins

Name
Class
Date
1.

Which layer of the OSI model is responsible for encryption and decryption?

a)

Transport

b)

Session

c)

Presentation

d)

Application

2.

Which protocol is used to translate domain names to IP addresses?

a)

ARP

b)

DNS

c)

DHCP

d)

FTP

3.

What is the size of an IPv4 address?

a)

16 bits

b)

32 bits

c)

64 bits

d)

128 bits

4.

Which device works at the Network layer?

a)

Hub

b)

Switch

c)

Router

d)

Repeater

5.

Which protocol is connection-oriented?

a)

UDP

b)

IP

c)

TCP

d)

ICMP

6.

What is the default port number of HTTP?

a)

20

b)

21

c)

80

d)

443

7.

Which addressing mode delivers data to all nodes?

a)

Unicast

b)

Multicast

c)

Broadcast

d)

Anycast

8.

Which protocol is used for error reporting in IP?

a)

ARP

b)

ICMP

c)

SMTP

d)

FTP

9.

What is the maximum length of a UDP header?

a)

8 bytes

b)

16 bytes

c)

20 bytes

d)

32 bytes

10.

Which technique is used to avoid congestion?

a)

Flow control

b)

Error control

c)

Congestion control

d)

Framing

11.

Which topology has a single point of failure?

a)

Mesh

b)

Star

c)

Ring

d)

Bus

12.

Which layer is responsible for end-to-end delivery?

a)

Network

b)

Transport

c)

Session

d)

Data link

13.

Which protocol is used for secure file transfer?

a)

FTP

b)

TFTP

c)

SFTP

d)

SMTP

14.

Which algorithm is used in Ethernet for collision detection?

a)

Token passing

b)

CSMA/CD

c)

CSMA/CA

d)

Polling

15.

What is the range of Class C IP addresses?

a)

1–126

b)

128–191

c)

192–223

d)

224–239

16.

Which protocol assigns IP addresses dynamically?

a)

DNS

b)

ARP

c)

DHCP

d)

SNMP

17.

Which layer provides logical addressing?

a)

Data link

b)

Network

c)

Transport

d)

Application

18.

What is the maximum hop count in RIP?

a)

10

b)

15

c)

16

d)

255

19.

Which protocol uses port 25?

a)

FTP

b)

SMTP

c)

POP3

d)

HTTP

20.

Which device breaks collision domains?

a)

Hub

b)

Repeater

c)

Switch

d)

Cable

21.

Which attack floods a server with traffic?

a)

Phishing

b)

DoS

c)

Sniffing

d)

Spoofing

22.

Which encryption uses a single key?

a)

RSA

b)

ECC

c)

Symmetric

d)

Asymmetric

23.

Which algorithm is asymmetric?

a)

AES

b)

DES

c)

RSA

d)

Blowfish

24.

What does CIA stand for in security?

a)

Control, Integrity, Access

b)

Confidentiality, Integrity, Availability

c)

Cryptography, Integrity, Access

d)

Confidentiality, Inspection, Authorization

25.

Which malware replicates itself?

a)

Trojan

b)

Worm

c)

Spyware

d)

Adware

26.

Which attack tricks users into revealing credentials?

a)

DoS

b)

Brute force

c)

Phishing

d)

Sniffing

27.

Which protocol provides secure remote login?

a)

Telnet

b)

FTP

c)

SSH

d)

SMTP

28.

What is the purpose of a firewall?

a)

Encrypt data

b)

Block unauthorized access

c)

Detect viruses

d)

Backup data

29.

Which hashing algorithm produces 128-bit hash?

a)

SHA-1

b)

SHA-256

c)

MD5

d)

SHA-512

30.

Which attack modifies data in transit?

a)

Passive

b)

Active

c)

Replay

d)

Traffic analysis

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