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WorksheetsComputer Network
Total questions: 15
Worksheet time: 15mins
The protocol data unit(PDU) for the application layer in the Internet stack is....
Segment
Datagram
Message
Frame
Which of the following transport layer protocols is used to support electronic mail?
SMTP
IP
TCP
UDP
m1:Send an email from a mail client to mail server
m2:Download an email from mailbox server to a mail client
m3:Checking email in a web browser
Which is the applicable level protocol user in each activity?
m1: HTTP m2: SMTP m3: POP
m1: HTTP m2: POP m3:SMTP
m1: SMTP m2: POP m3: HTTP
m1: POP m2:HTTP m3:SMTP
Packets of the same session may be routed through different paths in:
TCP not UDP
TCP and UDP
UDP not TCP
Neither TCP nor UDP
The address resolution protocol (ARP) is used for:
Finding the IP address from the DNS
Finding the IP address of the default gateway
Finding the IP address that corresponds to a MAC address
Finding the MAC address that corresponds to an IP address Answer
What is the maximum size of data that the application layer can pass on to the TCP layer below?
Any size
2^16 bytes-size of TCP header
2^16 bytes
1500 bytes
What is the primary function of the DNS protocol?
Resolve IP addresses to domain names
Resolve domain names to IP addresses
Encrypt network traffic
Handle packet routing
In TCP, what does the “three-way handshake” establish?
Data compression
Reliable connection
Data encryption
Broadcast communication
Which transport layer protocol is connectionless?
TCP
UDP
FTP
SNMP
Which protocol is used for error reporting in the Internet Layer?
ICMP
ARP
RARP
DHCP
What does the MAC address represent?
Logical address
Physical address
Gateway address
Broadcast address
Which protocol handles error detection at the Network Access Layer?
TCP
UDP
Ethernet
IP
Which among this is not a client-server application?
Ping
Web-browsing
Internet Chat
Assume that source S and destination D are connected through two intermediate routers labeled R. Determine how many times each packet has to visit the network layer and the data link layer during a transmission from S to D.
Network Layer-4 time
data link layer - 4 time
Network Layer-4 time
data link layer - 2 time
Network Layer-4 time
data link layer - 6 time
Network Layer-6 time
data link layer - 62time
Match the following:
(P) SMTP (1) Application layer
(Q) BGP (2) Transport layer
(R) TCP (3) Data link layer
(S) PPP (4) Network layer
(5) Physical layer
P - 2 Q - 1 R - 3 S - 5
P - 1 Q - 4 R - 2 S - 3
P - 1 Q - 4 R - 2 S - 5
P - 2 Q - 4 R - 1 S - 3
