Brontekst bekijken van ICT Infrastructuren/Netwerk-opgaven

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

=== From Chapter 1 ===

<ol>
<li>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.</li>
<!-- 3. Besides bandwidth and latency, what other parameter is needed to give a good characterization of the quality of service offered by a network used for (i) digitized voide traffic? (ii) video traffic? (iii) financial transaction traffic? -->
<li value="10">What are two reasons for using layered protocols? What is one possible disadvantage of using layered protocols?</li>
<!-- 12. Two networks each provide reliable connection-oriented service. One of them offers a reliable byte stream and th other offers a reliable message stream. Are these identical? If so, why is the distinction made? If not, give an example of how they differ. -->
</ol>

=== From Chapter 5 ===

<ol>
<li>Are there any circumstances when connection-oriented service will (or at least shold) deliver packets out of order? Explain.</li>
<!--Consider the network of Fig. 5-12(a). Distance vector routing is used, and the following vectors have just come in to router C:
* from B: (5, 0, 8, 12, 6, 2); (d.w.z. de kosten om van B naar A te communiceren zijn 5, om van B naar B te communiceren zijn 0; etc.)
* from D: (16, 12, 6, 0, 9, 10);
* and from E: (7, 6, 3, 9, 0, 4).
The cost of the links from C to B, D, adn E, are 6, 3, and 5 respectively. What is C's new routing table? Give both the outgoing line to use and the cost.-->
<li value="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?
<ol type="a">
<li>135.46.63.10</li>
<li>135.46.57.14</li>
<li>135.46.52.2</li>
<li>192.53.40.7</li>
<li>192.53.56.7</li></ol></li>
</ol>

=== From Chapter 6 ===

<ol>
<li value="11">Why does UDP exist? Would it not have been enough to just let user processes send raw IP packets?</li>

<li value="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.</li>

</ol>
[[Categorie:ACCESS David Jansen]]