9 Apr, 2007
Networking Interview Questions
- Identify the switching method that receives the entire frame then dispatches it?
* Cut-through
* Receive and forward
* Store and forward
* Fast forward
Correct answer: C
Store and forward switching receives the entire frame before dispatching it.
98Identify the purpose of ICMP?
* Avoiding routing loops
* Send error and control messages
* Transporting routing updates
* Collision detection
Correct answer: B
ICMP is used to send error and control messages. Ping uses ICMP to carry the echo-request and echo-reply.
99Which statement is true regarding the user exec and privileged exec mode?
* The ‘?’ only works in Privileged exec
* They are identical
* They both require the enable password
* User exec is a subset of the privileged exec
Correct answer: D
The user exec mode is a subset of the privileged exec mode. Only a certain number of commands are available at the user exec mode.
- Which OSI layer end to end communication, segmentation and re-assembly?
* Network
* Transport
* Physical
* Application
* Data-Link
* Presentation
Correct answer: B
Layer 4 the Transport layer performs this function.
- What IP command would you use to test the entire IP stack?
* Stack-test
* Arp
* Telnet
* Ping
* Trace
Correct answer: C
Because Telnet is an application and it resides at the top of the stack it traverses down the stack and up the stack at the receiving end.
- Identify the 2 hardware components used to manage and/or configure a router?
* Auxiliary port
* ROM port
* Management port
* Console port
Correct answer: A D
The 2 hardware ports used to configure the router are the console and auxiliary ports.
- What is the default bandwidth of a serial connection?
* 1200 baud
* 1.544 Mbps (T1)
* 10 Mbps
* 96Kpbs
Correct answer: B
The default bandwidth is T1.
- Identify 2 functions of IPX access-lists?
* Control SAP traffic
* Limit number of Novell servers on a network
* Limit number of workstations on a network
* Block IPX traffic
Correct answer: A D
IPX access lists are used to restrict IPX traffic and SAP broadcasts.
- Identify 2 HDLC characteristics?
* Default serial encapsulation
* Open standard
* Supports Stacker compression
* Supports point-to-point and multipoint
Correct answer: A D
HDLC is the default serial encapsulation and supports point-to-point and multipoint. It is not an open standard and does not support compression.
- Identify 3 IP applications?
* AURP
* ARP
* Telnet
* SMTP
* DNS
* RARP
Correct answer: C D E
ARP and AURP are not part the application layer of the TCP/IP stack. SMTP - Simple Mail Transfer Protocol, Telnet, DNS - Domain Name Services (name to IP resolution).
- Identify 3 LAN technologies?
* FDDI
* HDLC
* HSSI
* X.25
* 802.3
* 802.5
Correct answer: A E F
The question is asking for 3 LAN technologies, HDLC, HSSI and X.25 are all WAN technologies.
- Identify the 4 that are not LAN technologies?
* HDLC
* FDDI
* 802.5
* HSSI
* SDLC
* Frame Relay
Correct answer: A D E F
802.5 and FDDI are LAN technologies
