Networking Concepts and Protocols

What is the protocol data unit in layer 1 in the OSI Model?

• Packet

• Frame

• Segment

• bit

It is a unique identifier assigned to network interfaces for communications on the physical network segment.

• Frame Check Sequence (FCS)

• Switch

• Mac Address

• Ports

In what layer does the where the IP Addressing and IP Routing happen?

• Network Layer

• Data Link Layer

• Transport Layer

• Session Layer

Which of the following is not an application layer protocol?

• DNS

• Ethernet

• FTP

• SMTP

What is the port used by Post Office Protocol 3 (POP3) for secure connection?

• 993

• 143

• 995

• 110

Which of the following is Class D IP Address?

• 243.10.20.30

• 225.10.0.1

• 126.10.25.1

• 191.168.10.1

What is the procol that is responsible for sending emails.

• SMTP

• POP3

• IMAP

• SFTP

It is a protocol that provides reliable communication or service.

• TCP

• UDP

• DNS

• HTTP/s

Which of the following is IANA registered port?

• 1022

• 1024

• 1023

• 4952

It learns mac addresses by looking at the mac address field in the frame

• Router

• Hub

• MAC Address Table

• Switch