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Networking Interview Questions Answers

Networking Interview Question - 1 : -

What are the functions of the typical server program?

Networking Interview Answer - 1 : -

It waits for client-initiated requests. Executes many requests at the same time. Takes care of VIP clients first. Initiates and runs background task activity. Keeps running. Grown bigger and faster.
 

Networking Interview Question - 2 : -

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

Networking Interview Answer - 2 : -

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.
 

Networking Interview Question - 3 : -

Explain IP datagram, Fragmentation and MTU.

Networking Interview Answer - 3 : -

IP datagram can be used to describe a portion of IP data. Each IP datagram has set of fields arranged in an order. The order is specific which helps to decode and read the stream easily. IP datagram has fields like Version, header length, Type of service, Total length, checksum, flag, protocol, Time to live, Identification, source and destination ip address, padding, options and payload.

MTU:- Maximum Transmission Unit is the size of the largest packet that a communication protocol can pass. The size can be fixed by some standard or decided at the time of connection

Fragmentation is a process of breaking the IP packets into smaller pieces. Fragmentation is needed when the datagram is larger than the MTU. Each fragment becomes a datagram in itself and transmitted independently from source. When received by destination they are reassembled.

 

Networking Interview Question - 4 : -

What are called Non-GUI clients, GUI Clients and OOUI Clients?

Networking Interview Answer - 4 : -

Non-GUI Client: These are applications, generate server requests with a minimal amount of human interaction.
GUI Clients: These are applicatoins, where occassional requests to the server result from a human interacting with a GUI
(Example: Windows 3.x, NT 3.5)
OOUI clients : These are applications, which are highly-iconic, object-oriented user interface that provides seamless access to information in very visual formats.
(Example: MAC OS, Windows 95, NT 4.0)
 

Networking Interview Question - 5 : -

What is Structured Query Langauge (SQL)?

Networking Interview Answer - 5 : -

SQL is a powerful set-oriented language which was developed by IBM research for the databases that adhere to the relational model. It consists of a short list of powerful, yet highly flexible, commands that can be used to manipulate information collected in tables. Through SQL, we can manipulate and control sets of records at a time.
 

Networking Interview Question - 6 : -

What are the three types of SQL database server architecture?

Networking Interview Answer - 6 : -

Process-per-client Architecture. (Example: Oracle 6, Informix )
Multithreaded Architecture. (Example: Sybase, SQL server)
Hybrid Architecture
 

Networking Interview Question - 7 : -

What are the types of Transmission media?

Networking Interview Answer - 7 : -

Signals are usually transmitted over some transmission media that are broadly classified in to two categories:-

Guided Media:

These are those that provide a conduit from one device to another that include twisted-pair, coaxial cable and fiber-optic cable. A signal traveling along any of these media is directed and is contained by the physical limits of the medium. Twisted-pair and coaxial cable use metallic that accept and transport signals in the form of electrical current. Optical fiber is a glass or plastic cable that accepts and transports signals in the form of light.
Unguided Media:

This is the wireless media that transport electromagnetic waves without using a physical conductor. Signals are broadcast either through air. This is done through radio communication, satellite communication and cellular telephony.

 

Networking Interview Question - 8 : -

What is LDAP used for?

Networking Interview Answer - 8 : -

LDAP is a set of protocol used for providing access to information directories.
 

Networking Interview Question - 9 : -

What is source route?

Networking Interview Answer - 9 : -

It is a sequence of IP addresses identifying the route a datagram must follow. A source route may optionally be included in an IP datagram header.
 

Networking Interview Question - 10 : -

What is meant by 3-Tier architecture?

Networking Interview Answer - 10 : -

In 3-tier Client/Server systems, the application logic (or process) lives in the middle tier and it is separated from the data and the user interface. In theory, the 3-tier Client/Server systems are more scalable, robust and flexible.
Example: TP monitor, Web.
 

Networking Interview Question - 11 : -

What does the Mount protocol do ?

Networking Interview Answer - 11 : -

The Mount protocol returns a file handle and the name of the file system in which a requested file resides. The message is sent to the client from the server after reception of a client's request.
 

Networking Interview Question - 12 : -

What is NVT (Network Virtual Terminal)?

Networking Interview Answer - 12 : -

It is a set of rules defining a very simple virtual terminal interaction. The NVT is used in the start of a Telnet session.
 

Networking Interview Question - 13 : -

What is Groupware server?

Networking Interview Answer - 13 : -

Groupware addresses the management of semi-structured information such as text, image, mail, bulletin boards and the flow of work. These Client/Server systems have people in direct contact with other people.
 

Networking Interview Question - 14 : -

What are the important topologies for networks?

Networking Interview Answer - 14 : -

BUS topology:
In this each computer is directly connected to primary network cable in a single line.
Advantages:
Inexpensive, easy to install, simple to understand, easy to extend.
STAR topology:
In this all computers are connected using a central hub.
Advantages:
Can be inexpensive, easy to install and reconfigure and easy to trouble shoot physical problems.
RING topology:
In this all computers are connected in loop.
Advantages:
All computers have equal access to network media, installation can be simple, and signal does not degrade as much as in other topologies because each computer regenerates it.

 

 

Networking Interview Question - 15 : -

What is OSPF?

Networking Interview Answer - 15 : -

It is an Internet routing protocol that scales well, can route traffic along multiple paths, and uses knowledge of an Internet's topology to make accurate routing decisions.