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WorksheetsThe Transport Layer
Total questions: 10
Worksheet time: 5mins
Which one of the following is not a responsibility of the Transport Layer ?
Tracking the conversation
Segmentation
Identifying the application
directing the pack to the correct network
What information in the TCP header is used to reassemble the segments at the receiving end ?
Header length
Control bits
Sequence number
Windows size
What information in the TCP header is used to check for errors in the segment header & data ?
Sequence number
Windows size
Header length
Checksum
Which protocol does not resend lost segments ?
TCP
UDP
HTTP
FTP
What do you understand by the term Socket ?
It is an IP address
It is a Port number
IP and Port number
MAC address
Which well known port used by the SSH protocol ?
21
22
23
25
How many messages are exchanged during the TCP connection establishment process ?
0
1
2
3
A packet filtering firewall operates at
Layer 2 & 3
Layer 3 & 4
Layer 4 & 5
Layer 5 & 6
The type of firewall that maintains a state table to track the TCP connection state is called a
Packet filtering firewall
Application firewall
Statefull firewall
NAT firewall
A Demilitarized Zone in a network holds the
Web servers
Application servers
Database servers
LDAP servers
