1. (TCO 1) Suppose that there is exactly one packet switch between a sending host and a receiving host. The transmission rate (R1) between the sending host and the switch is 1,000 Mbps, and between the receiving host and the switch (R2), 1,000 Mbps. Also, assume that the switch uses store-and-forward packet switching. What is the end-to-end delay for a 1,500-Byte packet (length L)? (In this question, ignore queuing, propagation delay, and processing delay).
2. (TCO 1) Two hosts, A and B, are separated by 10,000 km and are connected by a 10-Mbps direct link. The propagation speed over the link is 2.5 * 108 m/s. If you are sending 10-million bits of information, what is the maximum number of bits that will be on the link at any given time?
3. (TCO 5) A CSMA/CD network suffers six collisions and chooses K=5. If the system is operating on a 100-Mbps link, what is the delay (in seconds) before it tries to transmit again?
4. (TCO 5) Consider a multiple-access protocol network with the following characteristics: There is a master host that checks with each of the other nodes to see if they have traffic to send. What is this type of multiple-access network called?
5. (TCO 5) A(n) ____________ address is used by the Logical Link Control (LLC) layer to denote a specific mechanism, process, or upper-layer protocol requesting services from the LLC sub-layer.
6. (TCO 5) Ignoring restricted addresses, what is the maximum number of IPv4 addresses supported by a system?
7. (TCO 5) Multipurpose Label-Switching (MPLS) routers use _________________ to forward their packets
8. (TCO 4) Which of the following method(s) is/are used to support switching in a router?
9. (TCO 4) Suppose that there are five routers between a source host and a destination host. If a 1,400-byte message (i.e., there is no fragmentation) is sent from the source host to the destination host, how many interfaces are involved?
10. (TCO 4) What is a difference between an IP-switched network and an ATM-switched network?
11. (TCO 4) What is the difference between an IPv4-supported network and an IPv6-supported network?
1. (TCO 4) Suppose that datagrams are limited to 1,500 bytes (including headers) between Source-Host A and Destination-Host B. Assume that you have a 20-byte IP header and a 20-byte TCP header. How many datagrams would be required to send an MP3 message consisting of 16-million bits?
2. (TCO 4) The Distance-Vector routing algorithm is
3. (TCO 4) A(n) ___________________________ is a group of routers that are typically under the same administrative control.
4. (TCO 4) The ________________ interior gateway protocol uses a Link-State routing algorithm based on Dijkstra
5. (TCO 4) Consider the network shown below. Suppose that Network 1 and Network 3 are running OSPF, and Network 2 and Network 4 are running RIP. Suppose that eBGP and iBGP are used for the inter-network routing protocol. There is no link between Networks 2 and 3. From which protocol does Router 3c learn about prefix x?
6. (TCO 3) A bridge connectivity device will separate the following two domains
7. (TCO 3) Which Transport-Layer protocol provides connectionless service?
8. (TCO 3) Duplicate datagrams in a TCP exchange are _________________ and ________________.
9. (TCO 3) Suppose that two TCP connections are present over some bottleneck link of Rate-10 Mbps. Both connections have files to send over the bottleneck link. Host-1 transmission rate would be___________, while Host 2 transmission rate would be ______________.
10. (TCO 3) Consider transferring an enormous file that uses all of the sequence numbers available from Host A to Host B. Use a MSS of 1,400 Bytes with 100 Bytes of header in each datagram. The link is 10 Mbps. With continuous transmission and ignoring flow control and congestion control, how long does it take to send the data?
11. (TCO 3) TCP uses __________________ as a congestion-control mechanism
1. (TCO 1) Within a network, _______________ define the exchange of messages and the actions taken when these messages are sent and received.
2. (TCO 1) In a _______________ switched network, the resources on the transmission path are reserved for the duration of a communication
3. (TCO 4) Based on the information shown in the figure, complete the Link-State routing table
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