ITECH1102 Self assessed theory test.
The problems contained in this self-assessed theory test will give students a guide as to their current level of understanding of some of the material covered in topics 1 – 6 of ITECH1102.
Many questions come straight from problem sheets on Moodle. Other questions are designed to test deeper understanding of the ITECH1102 concepts.
The self-assessed test is a first step in preparing for the end of semester examination. When marking the test award yourself 1 mark for each correct answer.
You have 2 hours to complete the test. After completing the test use your lecture slides, lab sheets, the Internet or other resources to determine the correct answers.
Topics 1 & 2
Q1. You have a bucket that contains 107 balls (107 is a decimal number).
How would you express that quantity of balls in the following number systems?
Binary ……………………………………..
Hexadecimal ……………………………………..
Octal ……………………………………..
Q2. The answer to the following statements are either decimal, binary, octal or hexadecimal.
The number system that is normally used to represent IPv4 subnet masks?
…………..……………
The number system that is normally used to represent an IPv4 address?
……..…………………
The number system that is normally used to represent an IPv6 address?
………………..………
Q3. Each digit of this number system is equivalent to three binary bits.
…………………………
Q4. Of the following people which two were instrumental in the development of circuit
switched networks?
(Choose the two correct answers)
Paul Young Paul Baran Paul Templeton
Donald Davies Russell Davies Sarah Davies
Q5. If you changed your network infrastructure from using hubs to switches, how would the change affect the network traffic that was seen by your PC. (Explain your answer).
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Q6. Describe why network switches are often described as Layer 2 devices.
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Topic 3 – The Application layer
Q7. In less than 10 words describe the main role of a server in client/server networks.
…………………………………………………………………………………………………………………
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Q8. A client in a client/server network is a ………….………… of network services.
Topic 4 – The Data Link layer
Q9. Which one of the following statements best describes the role of the ARP protocol?
· It determines the IP address of a computer
· It determines the IP address of a remote web server
· It deletes and adds entries in the arp cache
· It determines the MAC address of a computer
· It maintains a list of computers on the network
Q10. If your computer determines the destination address of a network packet is to a remote network. What does the Data Link layer software do with that packet?
………….………………………………………………………………………………………..
Q11. Which two of the following represent valid Ethernet frame headers for a packet captured on your local network? (Choose 2)
00 80 9A 43 88 1F FF FF FF FF FF FF 08 06
00 80 C7 67 A0 93 00 41 7B 32 ED 64 08 06
00 80 C7 67 A0 93 00 80 C7 67 A0 93 08 06
FF FF FF FF FF FF 00 80 C7 67 A0 93 08 06
Topic 5 – The Network layer
Q13. What is the main role of an IP address?
………………………………………………………………………………………………………..
Q14. Which server type allocates Subnet masks to networked computers?
………………………………………………………………………………………………………..
Q15. What is the subnet mask for a IPv4 address 141.132.196.17/24
………………………………………………………………
Q16. What is the subnet mask for a IPv4 address 141.132.196.17/18
………………………………………………………………
Q17. The following diagram shows two routers and the associated interface IP addresses and network addresses.
Complete the associated routing table for Router 1.
Topic 6 – The Transport layer
Q18. We can characterise the addressing at the Data Link layer as MAC
addresses.
What type of addressing is used at the following layers:
Network: ……………………………………………
Transport ……………………………………………
What entity is being addressed in each case?
Network: ……………………………………………
Transport ……………………………………………
Q19. What two things constitute a Socket?
…………………………………… & …………………………………………
Q20. How do server sockets differ from client sockets?
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USA 
India