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Application Layer (DNS/HTTP) MCQs

Solve topic-wise placement questions and improve your skills.

Application Layer (DNS/HTTP) Progress

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1

Which layer of the OSI model is responsible for end-to-end reliable communication and flow control?

A. Transport Layer

B. Network Layer

C. Data Link Layer

D. Session Layer

2

What is the standard port number for HTTPS secure web traffic?

A. 443

B. 80

C. 22

D. 53

3

How does TCP establish a connection between a client and server?

A. Three-Way Handshake (SYN, SYN-ACK, ACK)

B. Two-Way Ping (PING, PONG)

C. Four-Way Wave (FIN, ACK, FIN, ACK)

D. Broadcast flooding

4

What is the purpose of CIDR (Classless Inter-Domain Routing)?

A. To allocate IP addresses more flexibly and slow routing table growth

B. To convert IPv4 into MAC addresses

C. To encrypt packets in transit

D. To replace TCP with UDP

5

Which protocol translates human-readable domain names into numerical IP addresses?

A. DNS (Domain Name System)

B. DHCP

C. ARP

D. ICMP

6

Which protocol mechanism operates in Application Layer (DNS/HTTP) to guarantee packet delivery (Question 6)?

A. Checksum validation and sequence acknowledgment

B. Arbitrary packet dropping without notice

C. Disabling router tables

D. Unbuffered broadcasting

7

Which protocol mechanism operates in Application Layer (DNS/HTTP) to guarantee packet delivery (Question 7)?

A. Checksum validation and sequence acknowledgment

B. Arbitrary packet dropping without notice

C. Disabling router tables

D. Unbuffered broadcasting

8

Which protocol mechanism operates in Application Layer (DNS/HTTP) to guarantee packet delivery (Question 8)?

A. Checksum validation and sequence acknowledgment

B. Arbitrary packet dropping without notice

C. Disabling router tables

D. Unbuffered broadcasting

9

Which protocol mechanism operates in Application Layer (DNS/HTTP) to guarantee packet delivery (Question 9)?

A. Checksum validation and sequence acknowledgment

B. Arbitrary packet dropping without notice

C. Disabling router tables

D. Unbuffered broadcasting

10

Which protocol mechanism operates in Application Layer (DNS/HTTP) to guarantee packet delivery (Question 10)?

A. Checksum validation and sequence acknowledgment

B. Arbitrary packet dropping without notice

C. Disabling router tables

D. Unbuffered broadcasting

11

Which protocol mechanism operates in Application Layer (DNS/HTTP) to guarantee packet delivery (Question 11)?

A. Checksum validation and sequence acknowledgment

B. Arbitrary packet dropping without notice

C. Disabling router tables

D. Unbuffered broadcasting

12

Which protocol mechanism operates in Application Layer (DNS/HTTP) to guarantee packet delivery (Question 12)?

A. Checksum validation and sequence acknowledgment

B. Arbitrary packet dropping without notice

C. Disabling router tables

D. Unbuffered broadcasting

13

Which protocol mechanism operates in Application Layer (DNS/HTTP) to guarantee packet delivery (Question 13)?

A. Checksum validation and sequence acknowledgment

B. Arbitrary packet dropping without notice

C. Disabling router tables

D. Unbuffered broadcasting

14

Which protocol mechanism operates in Application Layer (DNS/HTTP) to guarantee packet delivery (Question 14)?

A. Checksum validation and sequence acknowledgment

B. Arbitrary packet dropping without notice

C. Disabling router tables

D. Unbuffered broadcasting

15

Which protocol mechanism operates in Application Layer (DNS/HTTP) to guarantee packet delivery (Question 15)?

A. Checksum validation and sequence acknowledgment

B. Arbitrary packet dropping without notice

C. Disabling router tables

D. Unbuffered broadcasting

16

Which protocol mechanism operates in Application Layer (DNS/HTTP) to guarantee packet delivery (Question 16)?

A. Checksum validation and sequence acknowledgment

B. Arbitrary packet dropping without notice

C. Disabling router tables

D. Unbuffered broadcasting

17

Which protocol mechanism operates in Application Layer (DNS/HTTP) to guarantee packet delivery (Question 17)?

A. Checksum validation and sequence acknowledgment

B. Arbitrary packet dropping without notice

C. Disabling router tables

D. Unbuffered broadcasting

18

Which protocol mechanism operates in Application Layer (DNS/HTTP) to guarantee packet delivery (Question 18)?

A. Checksum validation and sequence acknowledgment

B. Arbitrary packet dropping without notice

C. Disabling router tables

D. Unbuffered broadcasting

19

Which protocol mechanism operates in Application Layer (DNS/HTTP) to guarantee packet delivery (Question 19)?

A. Checksum validation and sequence acknowledgment

B. Arbitrary packet dropping without notice

C. Disabling router tables

D. Unbuffered broadcasting

20

Which protocol mechanism operates in Application Layer (DNS/HTTP) to guarantee packet delivery (Question 20)?

A. Checksum validation and sequence acknowledgment

B. Arbitrary packet dropping without notice

C. Disabling router tables

D. Unbuffered broadcasting

21

Which protocol mechanism operates in Application Layer (DNS/HTTP) to guarantee packet delivery (Question 21)?

A. Checksum validation and sequence acknowledgment

B. Arbitrary packet dropping without notice

C. Disabling router tables

D. Unbuffered broadcasting

22

Which protocol mechanism operates in Application Layer (DNS/HTTP) to guarantee packet delivery (Question 22)?

A. Checksum validation and sequence acknowledgment

B. Arbitrary packet dropping without notice

C. Disabling router tables

D. Unbuffered broadcasting

23

Which protocol mechanism operates in Application Layer (DNS/HTTP) to guarantee packet delivery (Question 23)?

A. Checksum validation and sequence acknowledgment

B. Arbitrary packet dropping without notice

C. Disabling router tables

D. Unbuffered broadcasting

24

Which protocol mechanism operates in Application Layer (DNS/HTTP) to guarantee packet delivery (Question 24)?

A. Checksum validation and sequence acknowledgment

B. Arbitrary packet dropping without notice

C. Disabling router tables

D. Unbuffered broadcasting

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