Networking Questions

Q:

What are 10Base2, 10Base5 and 10BaseT Ethernet LANs

Answer

10Base2—An Ethernet term meaning a maximum transfer rate of 10 Megabits per second that uses baseband


signaling, with a contiguous cable segment length of 100


meters and a maximum of 2 segments.


 


10Base5—An Ethernet term meaning a maximum transfer rate of 10 Megabits per second that uses baseband


signaling, with 5 continuous segments not exceeding 100


meters per segment.


 


10BaseT—An Ethernet term meaning a maximum transfer rate of 10 Megabits per second that uses baseband


signaling and twisted pair cabling.

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Q:

What is cladding?

Answer

A layer of a glass surrounding the center fiber of glass inside a fiber-optic cable.

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Q:

What are the data units at different layers of the TCP / IP protocol suite?

Answer

The data unit created at the application layer is called a message, at the transport layer the data unit created is called either a segment or an user datagram, at the network layer the data unit created is called the datagram, at the data link layer the datagram is encapsulated in to a frame and finally transmitted as signals along the transmission media.

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Q:

Frame relay is a packet switching technology operates in the data link layer

A) TRUE B) FALSE
Answer & Explanation Answer: A) TRUE

Explanation:

Frame relay is a packet switching technology. It will operate in the data link layer.

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Q:

What is difference between ARP and RARP?

Answer

The address resolution protocol (ARP) is used to associate the 32 bit IP address with the 48 bit physical address, used by a host or a router to find the physical address of another host on its network by sending a ARP query packet that includes the IP address of the receiver.


The reverse address resolution protocol (RARP) allows a host to discover its Internet address when it knows only its physical address

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Q:

Gateway-to-Gateway protocol is a protocol formerly used to exchange routing information between Internet core routers.

A) TRUE B) FALSE
Answer & Explanation Answer: A) TRUE

Explanation:

It is a protocol formerly used to exchange routing information between Internet core routers.

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Q:

Difference between bit rate and baud rate.?

Answer

Bit rate is the number of bits transmitted during one second whereas baud rate refers to the number of signal units per second that are required to represent those bits.


baud rate = bit rate / N


where N is no-of-bits represented by each signal shift.

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Q:

RIP- Routing Information Protocol

A) TRUE B) FALSE
Answer & Explanation Answer: A) TRUE

Explanation:

It is a simple protocol used to exchange information between the routers.

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