Interview Questions

Q:

What is the DNS forwarder?

Answer

DNS servers often must communicate with DNS servers outside of the local network. A forwarder is an entry that is used when a DNS server receives DNS queries that it cannot resolve locally. It then forwards those requests to external DNS servers for resolution.

Report Error

View answer Workspace Report Error Discuss

0 2017
Q:

What is the Routing Information Protocol or RIP?

Answer

RIP is a is an interior gateway protocol that was often used in interior networks and in some degree in internet networks. It helps the router adapt to the modifications that are made in a network regarding connections. Now it become less used since more efficient protocols were implemented like OSPF or IS-IS. It is limited to a lower number of routers, a maximum of fifteen router.

Report Error

View answer Workspace Report Error Discuss

0 2537
Q:

What is Stop-and-Wait Protocol?

Answer

In Stop and wait protocol, sender sends one frame, waits until it receives confirmation from the receiver (okay to go ahead), and then sends the next frame.


 

Report Error

View answer Workspace Report Error Discuss

0 3767
Q:

What is usage of Sequence Number in Relaible Transmission?

Answer

The protocol specifies that frames need to be numbered. This is done by using sequence numbers. A field is added to the data frame to hold the sequence number of that frame. Since we want to minimize the frame size, the smallest range that provides unambiguous communication. The sequence numbers can wrap around.

Report Error

View answer Workspace Report Error Discuss

0 3529
Q:

What is Pipelining ?

Answer

In networking and in other areas, a task is often begun before the previous task has ended. This is known as pipelining.


 

Report Error

View answer Workspace Report Error Discuss

0 3535
Q:

What does a VLAN do?

A) Breaks up broadcast domains in a layer 2 switch internetwork B) Provides multiple broadcast domains within a single collision domain
C) Provides multiple collision domains on one switch port D) Acts as the fastest port to all servers
 
Answer & Explanation Answer: A) Breaks up broadcast domains in a layer 2 switch internetwork

Explanation:

virtual LAN (VLAN) is any broadcast domain that is partitioned and isolated in a computer network at the data link layer (OSI layer 2). LAN is the abbreviation for local area network and in this context, virtual refers to a physical object recreated and altered by additional logic.

VLANs work by applying tags to network packets and handling these tags in networking systems – creating the appearance and functionality of network traffic that is physically on a single network but acts as if it is split between separate networks. In this way, VLANs can keep network applications separate despite being connected to the same physical network, and without requiring multiple sets of cabling and networking devices to be deployed.

Report Error

View Answer Report Error Discuss

0 2253
Q:

Which standard govern parallel communications?

A) CAT 5 B) RS232
C) RS-232a D) IEEE 1284
 
Answer & Explanation Answer: D) IEEE 1284

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Network Administration
Exam Prep: AIEEE , Bank Exams
Job Role: Analyst , Bank Clerk , Bank PO

0 1758
Q:

What is meant by a dedicated computer?

A) Which is assigned one and only one task B) Which is meant for application software
C) Which is used by one person only D) Which uses one kind of software
 
Answer & Explanation Answer: A) Which is assigned one and only one task

Explanation:

What_is_meant_by_a_dedicated_computer1560341069.jpg image

It is a single computer in a network reserved for serving the needs of the network.

Report Error

View Answer Report Error Discuss

0 1866