Chapter 1 Exam

Question 1

Fast Ethernet is the component of layer:

Answer 1

Physical Layer

Question 2

The main function of Data link layer is

Answer 2

Error checking and flow control

Question 3

What does OSI stand for?

Answer 3

Open Systems Interconnection

Question 4

Which protocol used to first establish the connection before any data is transmitted?

Answer 4

TCP

Question 5

HTTPS uses the TCP port ______

Answer 5

443

Question 6

What is the main equipment that is used on Layer 3?

Answer 6

Routers

Question 7

The physical layer is responsible for activating the physical circuit between the Data Terminal Equipment (DTE) and Data Circuit terminating Equipment (DCE), communication through it, and then deactivating it. True/False?

Answer 7

True

Question 8

Switch is __________ layer device.

Answer 8

Datalink (Layer 2)

Question 9

____________ layer establishes, manages, and terminates the connections between the local and remote applications

Answer 9

session

Question 10

What is the purpose of the Presentation layer?

Answer 10

Transaction of data between networking service and an application.

Question 11

Which layer is concerned with data representation and code formatting?

Answer 11

Presentation Layer

Question 12

SMTP is used to:

Answer 12

send and receive emails

Question 13

If a physical link is down, which is the highest layer to check this issue?

Answer 13

layer 1

Question 14

What is the highest used equipment of layer 7?

Answer 14

End User devices

Question 15

On _______ layer, every device has a logical address known as an IP address.

Answer 15

Network Layer

Question 16

At which layer data is transmitted in packets?

Answer 16

Network Layer

Question 17

The _________ is the OSI layer closest to the end user.

Answer 17

Application Layer

Question 18

Router is _______ layer device

Answer 18

Network (layer 3)

Question 19

FTP operates at the ________ layer

Answer 19

Transport (Layer 4)

Question 20

Can OSI model cope with larger complex network architecture? Yes or No?

Answer 20

Yes

Question 21

Transport layer provides which of the following basic functions?

Answer 21

Segmentation and reassembly of data.

Question 22

What is the main function of the transport layer?

Answer 22

Provide end to end delivery

Question 23

OSI is commonly used in:

Answer 23

All networks

Question 24

_________ defines the protocol to set up and terminate a connection between two directly connected nodes over a link/medium

Answer 24

Physical layer

Question 25

Network layer is in OSI’s

Answer 25

3rd Layer

Question 26

What will be the PDU name of Application Layer

Answer 26

Data

Question 27

Is the MAC address unique for each host or equipment?

Answer 27

Yes

Question 28

www browsers operate at the

Answer 28

application layer

Question 29

The layer deals with electrical specifications of the data connection is:

Answer 29

physical layer

Question 30

What will be the PDU name of the transport layer?

Answer 30

Segment