Computer Networks Subcategories

Basics	Network Layer
Freshers	Ripv1
Http	Application Layer
Cookie	Internet
Entrance Exams	Analyzing Subnet Mask
Ipv4 Ipv6 Comparison	Ipv4
Experienced	Dv Routing Algorithms
Http Ftp	Port
Campus Interviews	Computer Networks
Frame Relay 2	Atm Frame Relay
Network Topology Set 2	Snmp Operations
Snmp	Topology
Mac Address	Reliable Data Transfer
Acl	Mail Access Protocols
Routers Functionalities Basics	Ls Routing Algorithms
Cidr	Vlan
Bgp	Broadcast Routing
Hierarchical Routing	Switches Hubs
Error Detection Correction Techniques	Multiple Access Links Protocols
Symmetric Key Cryptography	Public Key Cryptography
Hash Functions	Digital Signatures
Cisco Lan Switches	Ipv6
Smtp	Access Networks
Mcqs	Sonet
Ftp	Aptitude Test
Physical Layer	Telnet
Web Caching	Network Security Encryption
Quiz	Online Quiz
Online Test	Ipsecurity
Security	Ospf
Firewall	Ethernet
Wireless Lan	Network Utilities
Bluetooth	Wimax
Rtp	Rpc
Eigrp 2	Reference Models
Data Link Layer	Transport Layer
Multiplexing	Packet Circuit Switching
Delays Loss	Network Attacks
Tcp	Udp
Virtual Circuit	Congestion Control
Test	World Wide Web
Icmp	Cryptography
Ip Routing 2	Physical Media
Dns	Dhcp
Ssh	Internetworking

Which of this is not a guided media?

A. Fiber optical cable
B. Coaxial cable
C. Wireless LAN
D. Copper wire

Explanation: Wireless LAN is unguided media.

UTP is commonly used in __________

A. Dsl
B. Fttp
C. HTTP
D. None of the mentioned

Explanation: Unshielded twisted pair(UTP) is commonly used in home access.

Coaxial cable consists of _______ concentric copper conductors.

A. 1
B. 2
C. 3
D. 4

Explanation: Coaxial cable has an inner conductor surrounded by a insulating layer, which is surrounded by a conducting shield. Coaxial cable is used to carry high frequency signals with low losses.

Fiber optics posses following properties __________

A. Immune electromagnetic interference
B. Very less signal attenuation
C. Very hard to tap
D. All of the mentioned

Explanation: In fibre optics the transmission of information is in the form of light or photons. Due to all above properties mentioned in options fibre optics can be submerged in water and are used at more risk environments.

If an Optical Carrier is represented as OC-n, generally the link speed equals(in Mbps) __________

A. N*39.8
B. N*51.8
C. 2n*51.8
D. None of the mentioned

Explanation: The base unit of transmission rates in optical fibre is 51.8 Mbits/s. So an optical carrier represented as OC-n has n*51.8 Mbits/s transmission speed. For eg. OC-3 has 3*51.8 Mbits/s speed.

Terrestrial radio channels are broadly classifed into _____ groups.

A. 2
B. 3
C. 4
D. 1

Explanation: The three types are those that operate over very short distance, those that operate in local areas, those that operate in the wide area.

Radio channels are attractive medium because __________

A. Can penetrate walls
B. Connectivity can be given to mobile user
C. Can carry signals for long distance
D. All of the mentioned

Explanation: Radio channels can penetrate walls, can be used to provide connectivity to mobile users and can also carry signals for long distances.

Geostationary satellites ___________

A. Are placed at a fixed point above the earth
B. Rotate the earth about a fixed axis
C. Rotate the earth about a varying axis
D. All of the mentioned

Explanation: They are placed in orbit at 36,000km above Earth’s surface.