IIMT 2601 TEST PAPER ANSWERS AND QUESTIONS
SET A+
✔✔1969 - ✔✔ARPANET delivered its first message; crashed
✔✔The Internet - ✔✔- a world-wide collection of networks that use a common protocol
to communicate with one another
- its term is derived from "internetworking" (connecting computers and networks to form
the largest network ever)
✔✔Networking Standards (Protocols) - ✔✔- a format for transmitting data (packets) that
has been agreed to by a standards organisation or industry consortium
- every party must speak the same language on a network
- a set of rules that governs communications between computers on a network
✔✔Standard Protocols - ✔✔- what is allowed to travel
- how do they travel
- how are they routed
- how to make data secure
- how to encrypt or decrypt data
✔✔Common Network Protocols - ✔✔bluetooth protocol, FTP, HTTP, HTTPs, SMTP,
POP, TCP
✔✔Packet Switching - ✔✔- slices and breaks down digital messages (data /
information) into packets
- packets possibly routed to destinations over different paths
- no end-to end connection required
- reassembles packets upon arrival at destination
✔✔Packet-Switching Network - ✔✔- TCP/IP breaks data into packets (after original
message is digitalised into bits)
- packets travel from router to router over the internet
- TCP/IP reassembles packets into the original message with help of header information
, ✔✔Header Information on Packets - ✔✔- indicates destination
- other control information (eg. how many bits, how many packets and their respective
order, etc.)
✔✔Packet Switching - Responsibilities - ✔✔- packets formatting
- routing (ensuring each packet follows an appropriate route)
- reordering (ensuring receiving device is able to put received packets back in order)
- collision handling and management
✔✔Transmission Control Protocol (TCP) - ✔✔- forms packets
- numbers packets in order
- receives packets and reorders them at destination
✔✔Internet Protocol (IP) - ✔✔- routing packets to proper destination
- provides addresses for packets
✔✔IP Address - ✔✔- IPv4
- every computer / server connected to the internet has a unique IP address
- used to locate and communicate among computers on the internet
- xxx.xxx.xxx.xxx (number between 0-255)
✔✔Static IP Address - ✔✔ISPs limit the number of static IP addresses they allocate due
to limited number of IP addresses
✔✔Dynamic IP Address - ✔✔- temporary IP addresses assigned from a pool of
remaining IP addresses after allocation of static IP addresses
- returns to the IP address pool to be reassigned to another user once a user
disconnects from the internet
✔✔IPv6 (Internet Protocol version 6) - ✔✔- new protocol after exhaustion of IPv4 on 3rd
Feb, 2011
- address size is increased from 32 to 128 bits
- codes are in hexadecimal
✔✔Domain Name - ✔✔- name that identifies a website (numeric IP address are difficult
to remember)
- registered in the DNS (Domain Name System), stored in DNS servers with your ISP
- "avengers.com"
- different domain names can direct to the same site
- a special type of URL
✔✔Domain Name System (DNS) - ✔✔- a distributed database of internet names
- DNS servers convert domain names to IP addresses
SET A+
✔✔1969 - ✔✔ARPANET delivered its first message; crashed
✔✔The Internet - ✔✔- a world-wide collection of networks that use a common protocol
to communicate with one another
- its term is derived from "internetworking" (connecting computers and networks to form
the largest network ever)
✔✔Networking Standards (Protocols) - ✔✔- a format for transmitting data (packets) that
has been agreed to by a standards organisation or industry consortium
- every party must speak the same language on a network
- a set of rules that governs communications between computers on a network
✔✔Standard Protocols - ✔✔- what is allowed to travel
- how do they travel
- how are they routed
- how to make data secure
- how to encrypt or decrypt data
✔✔Common Network Protocols - ✔✔bluetooth protocol, FTP, HTTP, HTTPs, SMTP,
POP, TCP
✔✔Packet Switching - ✔✔- slices and breaks down digital messages (data /
information) into packets
- packets possibly routed to destinations over different paths
- no end-to end connection required
- reassembles packets upon arrival at destination
✔✔Packet-Switching Network - ✔✔- TCP/IP breaks data into packets (after original
message is digitalised into bits)
- packets travel from router to router over the internet
- TCP/IP reassembles packets into the original message with help of header information
, ✔✔Header Information on Packets - ✔✔- indicates destination
- other control information (eg. how many bits, how many packets and their respective
order, etc.)
✔✔Packet Switching - Responsibilities - ✔✔- packets formatting
- routing (ensuring each packet follows an appropriate route)
- reordering (ensuring receiving device is able to put received packets back in order)
- collision handling and management
✔✔Transmission Control Protocol (TCP) - ✔✔- forms packets
- numbers packets in order
- receives packets and reorders them at destination
✔✔Internet Protocol (IP) - ✔✔- routing packets to proper destination
- provides addresses for packets
✔✔IP Address - ✔✔- IPv4
- every computer / server connected to the internet has a unique IP address
- used to locate and communicate among computers on the internet
- xxx.xxx.xxx.xxx (number between 0-255)
✔✔Static IP Address - ✔✔ISPs limit the number of static IP addresses they allocate due
to limited number of IP addresses
✔✔Dynamic IP Address - ✔✔- temporary IP addresses assigned from a pool of
remaining IP addresses after allocation of static IP addresses
- returns to the IP address pool to be reassigned to another user once a user
disconnects from the internet
✔✔IPv6 (Internet Protocol version 6) - ✔✔- new protocol after exhaustion of IPv4 on 3rd
Feb, 2011
- address size is increased from 32 to 128 bits
- codes are in hexadecimal
✔✔Domain Name - ✔✔- name that identifies a website (numeric IP address are difficult
to remember)
- registered in the DNS (Domain Name System), stored in DNS servers with your ISP
- "avengers.com"
- different domain names can direct to the same site
- a special type of URL
✔✔Domain Name System (DNS) - ✔✔- a distributed database of internet names
- DNS servers convert domain names to IP addresses
