Saint Com548 EXAM 2 Latest 2019 March Question # 00600741 Subject: Education Due on: 04/27/2019 Posted On: 04/27/2019 04:44 AM Tutorials: 1 Rating: 4.8/5

COM548
Advanced Networking Protocols

EXAM 2

Question 1 Suppose Host A is sending Host B
a large file over a TCP connection. The number of unacknowledged bytes that
Host A sends cannot exceed the size of the receiver buffer.

Question 1 options:

True

False

Question 2 Suppose Host A is sending Host B
a large file to Host B over a TCP connection. If the sequence number for a
segment of this connection is m, then the sequence number for the subsequent
segment will necessarily be m+1.

Question 2 options:

True

False

Question 3 Consider congestion control in
TCP. When the timer expires at the sender, the value of ssthresh is set to one
half of its previous value.

Question 3 options:

True

False

Question 4 Host A is sending Host B a large
file over a TCP connection. Assume Host B has no data to send Host A. Host B
will not send acknowledgements to Host A because Host B cannot piggyback the
acknowledgements on data.

Question 4 options:

True

False

Question 5 Voice and video traffic is often
sent over TCP.

Question 5 options:

True

False

Question 6 CMP is primarily used for:

Question 6 options:

addressing.

error and diagnostic functions.

none of the above.

forwarding.

Question 7 The function(s) of network layer
in a virtual-circuit network is/are:

Question 7 options:

all of the above.

routing.

forwarding.

call setup.

Question 8 Routers in both datagram
networks and virtual-circuit networks both use forwarding tables.

Question 8 options:

True

False

Question 9 The network layer concerns with
__________.

Question 9 options:

none of the above.

frames

bits

packets

Question 10 It has been said that when IPv6
tunnels through IPv4 routers, IPv6 treats the IPv4 tunnels as link-layer
protocols.

Question 10 options:

True

False

Question 11 A circuit-switched network
cannot guarantee a certain amount of end-to-end bandwidth.

Question 11 options:

True

False

Question 12 Which of the following protocol
is used for Electronic Mail?

Question 12 options

TELNET

HTTP

SMTP

NNTP

Question 13 Network architecture refers to
the organization of the communication process into layers.

Question 13 options:

True

False

Question 14 Host and end-system have the
same meaning.

Question 14 options:

True

False

Question 15 Which of the following is not a
transmission rate of Ethernet LAN?

Question 15 options:

10 Mbps

100 Gbps

1 Gbps

100 Mbps

Question 16 Can store-and-forward be used
in a circuit-switched network?

Question 16 options:

No

Yes

Question 17 Which of the following is true?

Question 17 options:

SMTP and HTTP do not use handshake

SMTP uses handshake, HTTP does not

SMTP and HTTP use handshake

SMTP does not use handshake, HTTP does

Question 18 A __________ specifies how
networked data is formatted into discrete units, such as packets or frames.

Question 18 options:

router

topology

protocol

communications medium

Question 19 Which of the following is true
about TCP?

Question 19 options:

A guarantee that a certain value for
throughput will be maintained

Data transfer is intact

A guarantee that data will be delivered
within a specified amount of time

Providing Confidentiality

Question 20 How many parallel connections
does FTP maintain simultaneously?

Question 20 options:

2

4

3

5