Question 2 (1,5 points) In order to find the best route to a destination, a router reads the routing table from top to t

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Question 2 (1,5 points)
In order to find the best route to a destination, a router readsthe routing table from top to the bottom and as soon as it finds amatch, it uses that information to forward the packet to the properinterface.
Options de la question 2 :
Question 3 (1,5 points)
In routers, for every destination network there is a unique rowin the routing table, indicating where the packet must be routedto.
Options de la question 3 :
Question 4 (1,5 points)
In Distance Vector Algorithms, routers periodically advertisetheir networks to neighbor routers.
Options de la question 4 :
Question 5 (1,5 points)
In Distance Vector Algorithms, routes are not known to routersunless all routers converge.
Options de la question 5 :
Question 6 (1,5 points)
Every router has a default gateway
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Question 7 (1,5 points)
Dynamic Routing protocols are generally used by ISPs and are notused in private networks.
Options de la question 7 :
Question 8 (4 points)
Which of the following statements is NOT true about the address229.0.0.5?
Options de la question 8 :
The above IP is a class D address.
The above IP is a multicast address
The above IP is a unicast address
All of the above.
Question 9 (4 points)
What type of DNS record is used by the mail servers to determinewhen to send emails?
Options de la question 9 :
CNAME record
A record
SMTP record
SRV record
MX record
Question 10 (4 points)
Which of the following applies to the address192.168.11.55/23?
Options de la question 10 :
It belongs to a subnet of a class B network
It belongs to network 192.168.11.0
It belongs to network 192.168.10.0
It belongs to network 192.168.11.128
Question 11 (4 points)
What is the maximum number of hosts in a /27 subnet?
Options de la question 11 :
14
15
28
30
62
Question 12 (4 points)
Given the following routing table:
Where would a packet with the address 32.165.5.126 be set?
Options de la question 12 :
To the 32.165.5.1 on interface WAN.
To the 10.0.0.0/8 network on interface LAN.
To the 32.165.5.0/25 network on interface WAN.
None of the above.
Question 13 (4 points)
Which of the following is a valid loopback address?
Options de la question 13 :
127.1.2.3
127.0.0.0
128.0.0.254
128.0.0.1
Question 14 (4 points)
Which of the following is true about RIP?
Options de la question 14 :
All versions of RIP supports VLSM.
Unlike RIPv1, RIPv2 is the only version that may be used inconjunction with other dynamic routing protocols.
RIP is a common dynamic routing protocol and may be found onevery average router.
A router that is implementing RIP cannot use static routing.
Question 15 (4 points)
In resolving www.google.ca by a localclient, which one of the following is NOT carried out during thename resolution process?
Options de la question 15 :
Discovering the DNS server in the local network
Consulting HOSTS file
Finding the address of the name server responsible for thegoogle.ca domain
Retrieving the A record for the server www via the name serverresponsible for google.ca
Question 16 (4 points)
The address 132.216.129.10/25 belongs to which network?
Options de la question 16 :
132.216.128.0
132.216.129.0
132.216.129.128
132.216.0.0
132.217.0.0
Question 17 (4 points)
Which of the following is NOT true?
Options de la question 17 :
OSPF is a link-state routing algorithm.
RIP is an example of and IGP algorithm.
A router can either run RIPv1 or OSPF.
OSPF uses wildcard masks.
Question 18 (4 points)
Port Forwarding is a technique that uses _________ to map_________ from a _________ to a specific machine in the_________ network.
Options de la question 18 :
port numbers, outgoing connections, single ip, public
mac address, outgoing connections, single ip, private
port numbers, outgoing connections, single ip, private
port numbers, incoming connections, public client, private
Question 19 (4 points)
You need to divide a class A network into one segment of 125hosts, one segment of 50 hosts and 2 segments of 30 host. Whichcombination of subnet masks would you choose to achieve thatresult.
Options de la question 19 :
1 /25 segment, 1 /26 segment and 2 /27 segment
1 /26 segment, 1 /27 segment and 2 /28 segment
1 /24 segment, 1 /25 segment and 2 /26 segment
You can't do it because you don't have enough addresses toaccommodate all required hosts.
Question 20 (4 points)
What type of DNS record is used by the email clients todetermine where to connect in order to retrieve the emails?
Options de la question 20 :
NS record
A record
SOA record
MX record
Question 21 (3 points)
What is the shorthand corresponding to a subnet mask of255.248.0.0 (the "/" notation) ?
Options de la question 21 :
Question 22 (3 points)
Options de la question 22 :
A
DNS record type is used for reverse lookup.
Question 23 (3 points)
Options de la question 23 :
The smallest subnetwork that can be implemented in a class Cnetwork has a subnet mask of
and can address
hosts.
Question 24 (3 points)
What is the Network ID of the following IP address:10.11.12.13/25
Options de la question 24 :
Question 25 (3 points)
Enter the last valid host on the network 10.11.0.0255.255.0.0:
Options de la question 25 :
Part B
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To answer the following question, download the following packettracer file:
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Question 26 (12 points)
You want to create a network of a private class B to accommodatea maximum of 900 devices, equally distributed over threefloors.
The computers on each floor must be kept on a separate subnet,however, all computers must reach one another.
You requirement is to use a single class B network toaccommodate the 900 devices. The network address space must be keptminimal (use optimal design).
Answer the following questions:
A) What is the network address that youare going to assign to this network?B) What is the subnet mask of the wholenetwork in slash notation?C) What is the subnet mask of the wholenetwork in dotted decimal format?D) What is the subnet mask of the firstsubnet in slash notation?E) What is the broadcast address of the firstsubnet?F) What is the last available address in thefirst subnet?G) You have three subnets. What is thenetwork address of the second subnet?
Options de la question 26 :
Paragraphe
Lato (Recommandé)
19px (par défaut)
Question 27 (12 points)
Open the packet tracer file and test whether PC0 can pingLaptop0.
A) Provide the IP addresses and thedefault gateways for both computers.
B) Can PC0 ping Laptop0 (Yes/No)?
C) Can Laptop0 ping PC0 (Yes/No)?
D) Explain your answer in B with regardsto the physical layer.
E) Explain your answer in C with regardsto the network layer.