Pre-Test Week 4

How many RTTs are required to access a web page that contains a single HTML page, two images, and a single video file using HTTP 1.0?

• 4 RTTs

• 5 RTTs

• 8 RTTs

• 10 RTTs

How many RTTs are required to access a web page with a single HTML page, two images, and a single video file using HTTP 1.1?

• 4 RTTs

• 5 RTTs

• 8 RTTs

• 10 RTTs

Which is NOT the TCP features?

• Reliable data transfer

• Flow Control

• Connectionless

• Congestion Control

The following information are used by UDP to demultiplex packet at receiver?

• Source IP and Source port address

• Destination IP and destination port address

• Source and Destination IP address

• Source and Destination Port address

TCP socket is identified by 4 tuples information i.e., source IP address, source port address, destination IP address, and destination port address

• True

• False

Which application below is the most suitable to use UDP as its transport protocol?

• Instant messaging

• Web access

• Online shopping

• Real-time video streaming

What is Internet checksum used for?

• Identify bit-error on the packet

• Fix any bit error in the packet

• Speed-up packet transmission

• Prevent packet modification

What is the common technique used by TCP to detect failure transmission?

• Internet checksum

• Timeout mechanism

• Direct notification

• None of them

Host A and B are communicating as shown in Figure. What is the value of Sequence number (Seq) and Acknowlegement number (Ack) sent by Host A to Host B?

• Seq=79 and Ack=43

• Seq=43 and Ack=79

• Seq=79 and Ack=42

• Seq=42 and Ack=79

Besides timeout TCP also uses another technique to detect failure packet transmission

• True

• False