Anne Final (Ch.5) Questions

Circle (2) Traffic Shaping algorithms. a) Turing's Algorithm b) Leaky Bucket Algorithm c) DIjkstra's Algorithm d)Token Bucket Algorithm

( b) Leaky Bucket Algorithm) (d)Token Bucket Algorithm ) Buckets

A router using distance vector protocols knows 2 things: a. Distance: to ______ destination b. Vector, or direction: ______ should be directed

(final) (traffic)

Link State Questions (Check Packet if needed) Easy tho

...

What is the first step in the routing process

1. Find all Row Matches (Answer, but know all) 2. Find best match 3.Send it out

In a table with 100 rows, the Best-Match Row is row 11... how many rows with the router have to look at before finding determining the Best-Match Row?

100

How many IP addresses can be found with a mask of 255.255.255.0?

254

What indicates the IP address range?

A destination and a mask

A condition in which a packet is continuously transmitted within a series of routers without ever reaching its destination a)Routing Processes B) Internetworking C) Routing Loops

C)Routing Loops

What is the difference between Congestion Control and Flow Control?

Congestion Control is a global issue. Flow Control 's scope is only point to point.

Choke packets deal with congestion ______ while random early discard deals with congestion ______.

Detection, Avoidance.

Multicasting is primarily used to deliver information to a single source? T or F

False

What is the first thing a router does after looking at the ip address when the packet arrives?

Finds all row matches.

How does a router know if a row is a match?

It applies a mask to the IP address and checks the resulting value against the value in the destination

What does the router do if there is a tie?

It compares all the rows and the one with the longest match it takes

Link State Routing Protocols are also known as ?

OSPF (Shortest Path First Algorithms)

When are link state packets sent out?

On start up and when the topology changes.

When should RIP and OSPF be used in networks?

RIP is fine for small networks while OSPF is scalable

What interconnection device operates on the network layer?

Router

What is Routing?

The processing of an individual packet and passing it on its way.

What is jitter?

The variation in the delay or packet arrival times.

Congestion control is concerned with efficiently using a network at high load (True or False)

True

One thing that ma y cause routing loops is incorrectly configuring static routes. T or F

True

Traffic shaping delays the flow of packets that have been designated as less important/ less desired.(T or F)

True

True or False Multicasting is the process in which a message is sent to a defined group which is numerically large but small in comparison to the network.

True

True or False Worse case QoS provides guarantees to each packet?

True

True or False. In Multicast groups members are the intended receivers.

True

True or False: Classless Inter Domain Routing (CIDR) is a method for assigning IP addresses without using the standard IP address classes like Class A, Class B or Class C. True or False, A routers first task once it is booted is to learn who its neighbors are by sending a special "HELLO" packet

True

True or False: Convergence is getting correct routing tables after failure in a router or link.

True

True or false: Broadcast updates are a characteristic of a Distance Vector Routing Protocol.

True

True or False: Traffic shaping affects the rate at which packets are sent.

True (I think)

The leaky bucket approach fixes what problem? a) Bursting b)Latency c)Bandwidth d) Over Provisioning

a) Bursting

In _____, the router forwards the received packet through only one its interfaces a) unicast b) multicast c) broadcast d) none of the above

a) unicast

Which of the following is an issue that creates routing loops? a)incorrectly configured static routes b)slow convergence c) Incorrectly configured discard routes d) excess use of bandwith

a)incorrectly configured static routes b)slow convergence

What is an interconnecting gateway? a)Packet b)Router c)Switch d)Modem

b) Router

What does RIP stand for? a. Routing Internet-working protocol b. Routing information protocol c. Routing Internet-working process d. Routing information process

b. Routing information protocol

.Which row will the router choose? a) Match of /16, cost metric = 8 b) Match of /16, cost metric = 20 c) Match of /24, cost metric = 20 d) Match of /24, cost metric = 24

c) Match of /24, cost metric = 20 because it has the highest mask and lowest cost

Which one of these is not a factor that causes congestion? a. Slow processor b. Insufficient memory to store arriving packets c. network failure d. Bursty Traffic

c) Network Failure

Which of the following is an example of link state routing protocols? a)RIP b)ARP c)OSPF d)TCP

c) OSPF

Congestion control techniques include all of the following except: a) Warning bit b) Choke packet c) Bit stuffing d) Load shedding

c) bit stuffing

A one-to-one communication between one source and all hosts on a network is classified as a ____ communication. a)unicast b)multicast c)broadcast d)none of the above

c) broadcast?

What is multicasting? a)a "group message" on an apple device? b)a way to transmit data to multiple recipients? c)a mailing list d)All of the Above?

d) All of the above.

What is a key tool used today to build scalable, heterogeneous internetworks? a) Gateways b) Packets c) Checksum d) IP (Internet Protocol)

d) IP (Internet Protocol)

QoS guarantees for a) bandwidth b)latency c)jitter d) all of the above

d) all of the above

Which of the following are True in Multicast Groups: a) Hosts may belong to many groups and send to one group. b) Hosts may belong to one group and send to one group. c) Hosts may belong to one group and send to many groups d)Hosts may belong to many groups and send to many groups.

d)Hosts may belong to many groups and send to many groups.

Which of the following are examples of Distance Vector routing protocols: a. Routing Information Protocol(RIP) b.Interior Gateway Routing Protocol(IGRP) c. Enhanced Interior Gateway Routing Protocol(EIGRP) d. All of the above

d. All of the above

Which of the following is factor that causes congestion? a)Packet arrival rate exceeds the outgoing link capacity b)Insufficient memory to store arriving packets c) Busty Traffic d) Slow Processor e) All of the above

e) All of the above

How does the router know which row is the best match?

it compares all the rows and the one with the longest match it takes