ICT169 - Friday

Which protocol uses encryption?

• HTTPS

• FTP

• DNS

• DHCP

Which statement is true about FTP?

• The client can decide if FTP is going to establish one or two connections to the server

• FTP is a peer to peer protocol

• The client can download or upload data to the server

• FTP does not provide reliability during data transmission

What is the purpose of using a source port number in a TCP communication?

• to notify the remote device that the conversation is over

• to keep track of multiple conversation between devices

• to inquire for a non received segment

• to assemble the segments that received out of order

What type of applications are best suited for using UDP?

• applications that require retransmission of lost segments

• applications that are sensitive to delay

• applications that need reliable delivery

• applications that are sensitive to packet loss

Which command can be used on a Windows host to display the routing table?

• netstat -s

• show ip route

• netstat -r

• tracert

When a router receives a packet, what information must be examined in order for the packet to be forwarded to a remote destination?

• destination MAC address

• source MAC address

• source IP address

• destination IP address

Which subnet mask would be used if 5 host bits are available?

• 255.255.255.128

• 255.255.255.224

• 255.255.255.240

• 255.255.255.0

Why does a Layer 3 device perform the ANDing process on a destination IP address and subnet mask?

• to identify faulty frames

• to identify the network address of the destination network

• to identify the host address of the destination network

• to identify the broadcast address of the destination network

Which procedure is used to reduce the effect of crosstalk in copper cables?

• twisting opposing wire circuit pairs together

• avoiding sharp bends during installation

• require proper grounding connections

• wrapping the bundle of wires with metallic shielding

What is the definition of bandwidth?

• the speed at which bits travel on the network

• the measure of usable data transferred over a given period of time

• the speed of bits over a media in a given time

• the amount of data that can flow from one place to another in a given time