ICT Infrastructuren/Netwerk-opgaven

Ik heb een paar opgaven uit het boek van Tanenbaum gekopieerd:

From Chapter 1

1. An alternative to a LAN (local area network) is just a big timesharing system with terminals for all users. Give two advantages of a client–server system using a LAN.
10. What are two reasons for using layered protocols? What is one possible disadvantage of using layered protocols?

From Chapter 5

1. Are there any circumstances when connection-oriented service will (or at least shold) deliver packets out of order? Explain.
30. A router has the following entries in its routing table:

    Address/mask	Next hop
    135.46.56.0/22	Interface 0
    135.46.60.0/22	Interface 1
    192.53.40.0/23	Router 1
    default	Router 2

    For each of the following IP addresses, what does the router do if a packet with that destination address arrives?

    1. 135.46.63.10
    2. 135.46.57.14
    3. 135.46.52.2
    4. 192.53.40.7
    5. 192.53.56.7

From Chapter 6

11. Why does UDP exist? Would it not have been enough to just let user processes send raw IP packets?
32. A CPU executes instructions at the rate of 1000 MIPS (IPS = instructions per second). Data can be copied 64 bits at a time, with each word copied costing 10 instructions. If an incoming packet has to be copied four times, can this system handle a 1-Gbps line? For simplicity, assume that all instructions, even those instructions that read or write memory, run at the full 1000-MIPS rate.