Lab/Tutorial :
SEHH2238 : Computer Networking Session 1 : Basic
For n devices in a network, what is the number of cable links required for:
1) Topology
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No. of devices
Mesh Ring Bus Star
Total No. of Cables No. of Ports per device Total No. of Cables No. of Ports per device
Draw a hybrid topology with a star backbone connecting three bus backbones. Each bus backbone connects three ring networks.
2) Transmission Mode / Data Flow
1) Communication between a computer and a keyboard involves ____________ transmission.
2) A television broadcast is an example of ____________ transmission.
3) The _______ is the physical path over which a message travels.
A) Protocol B) Medium C) Signal D) All the above
4) The information to be communicated in a data communications system is the _______. A) Medium B) Protocol C) Message D) Transmission
5) Network performance is good when throughput is ________ and delay is ________. A) high, high B) high, low C) low, high D) low, low
6) _______ is the protocol suite for the current Internet.
A) TCP/IP B) OSI C) UNIX D) ATM
7) In TCP/IP protocol suite, ________ layer provides reliable end-to-end connection. A) application B) transport C) network D) data link
Additional Questions
1) A color image uses 16 bits to represent a pixel. What is the maximum number of different colors that can be represented? What is the maximum number of characters that can be represented by Unicode?
2) A pixel can have 1000 colours. How many bits are required to represent a pixel?
SEHH2238 Computer Networking Tutorial 1 Page 1
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