Chapter 1

Question 1

What of the following protocols are examples of TCP/IP Transport layer protocol? Choose two answers.

Answer 1

UDP & TCP

Question 2

Which of the following protocols are examples of TCP/IP data-link layer protocols? Choose two

Answer 2

Ethernet & PPP

Question 3

List the protocols for Application Layer

Answer 3

HTTP POP3 SMTP

Question 4

List protocols for transport layer

Answer 4

TCP UDP

Question 5

List protocol for network layer

Answer 5

IP ICMP

Question 6

List protocol for data link & physical layer

Answer 6

Ethernet 802.11(wi-if)

Question 7

What does the TCP/IP Application layer do ?

Answer 7

It provides services to the application software running on a computer .

Question 8

Which protocol is recommended to use when browsing Internet

Answer 8

HTTPS

Question 9

Which protocols are used by email services like Gmail & Hotmail?

Answer 9

SMTP, POP3, IMAP

Question 10

DNS belongs to which layer of the OSI model?

Answer 10

Layer 7

Question 11

Which protocol provides three way handshake?

Answer 11

TCP

Question 12

How many NTP Stratum levels are there in total?

Answer 12

16

Question 13

Which implication protocol uses the UDP port 67 & 68?

Answer 13

DHCP

Question 14

Which of these is a connection oriented and secure protocol?

Answer 14

TCP

Question 15

Which ones of below or valid DHCP operation steps?

Answer 15

DORA (discovery offer, request acknowledgment )

Question 16

Difference between adjacent-layer and same-layer interactions?

Answer 16

Same-layer happens between different computers while adjacent-layer happens on the same computer.
Same-layer happens between the same layer while adjacent happens between the different layers

Question 17

Adjacent-Layer interaction

Answer 17

Describes how layers on the same computer interact

Question 18

What is one major protocol used in Network Layer?

Answer 18

IP

Question 19

Define encapsulation in ccna

Answer 19

Process of putting header and sometimes trailers around some data