Networking Interview Questions
CCNA Interview Questions 22
- Which three of the following are true statements about connection-oriented sessions?
* The segments delivered are acknowledged back to the sender upon their reception
* Any segments not acknowledged the are retransmitted by the receiver
* A manageable data flow is maintained in order to avoid congestion, overloading and loss of any data
* Segments are sequenced back into their proper order upon arrival at their destination
Correct answer: A C D
Connection-oriented services are useful for transmitting data from applications that are intolerant of delays and packet re-sequencing. FTP and Telnet applications are based on connection-oriented services as well as some voice and video programs. Any segment that is not acknowledged by the received is retransmitted by the sender.
CCNA Interview Questions 23
- What is required to support full-duplex Ethernet?
* Multiple paths between multiple stations on a link
* Automatic sensing operation by all connected stations
* Loopback and collision detection disabled
* Full-duplex NIC cards
Correct answer: C D
Full duplex ethernet requires that the NIC supports full-duplex, and loopback and collision detection are disabled. - Which layer is responsible for determining if sufficient resources for the intended communication exists?
* Application
* Network
* Session
* Presentation
* Transport
Correct answer: A
The Application layer is responsible for determining if sufficient resources for the intended communication exists.
Network Developer Interview Questions
- How does TCP handshake work?
- How does SSL handshake work?
- What is the difference between passive FTP and active FTP?
- What is the difference between socket and session?
- How does network management station work?
- What are the different phases in VPN establishment?
- How does DH (deffie helman) work?
- What is TCP window sizing?
- What is MTU?
Some PC and Networking Questions
- Workers can not print from the printer, there user log on are correct and are allowed to print from that printer in active directory. How would you resolve this issue?
- What is the difference between hub and switch?
- Your hard drive is partitioned as follows: 8 gigs for OS drive C, 8 gigs for Hot Swappable dirve D and rest is free as dirve E. Your drive C crashes, how would you reboot your system without installing a new operating system?
- Your computer gives you “non-disk error” before you log on what would you do to make your computer work?
Network engineer interview questions
- User(s) are complaining of delays when using the network. What would you do?
- What are some of the problems associated with operating a switched LAN?
- Name some of the ways of combining TCP/IP traffic and SNA traffic over the same link.
- What sort of cabling is suitable for Fast Ethernet protocols?
- What is a Class D IP address?
- Why do I sometimes lose a server’s address when using more than one server?
- What is Firewall?
- How do I monitor the activity of sockets?
- How would I put my socket in non-blocking mode?
