Quiz

Question 1

What is the fixed binary value of the first field of an IPv4 header?

1. 0010;

2. 0110;

3. 0001;

4. 0100.

Solution

4. 0100.

Question 2

Which field will cause the packet to be dropped if it has a value of 0?

1. TTL;

2. DSCP;

3. IHL;

4. ECN.

Solution

1. TTL.

Question 3

How are errors in an IPv4 packet's encapsulated data detected?

1. The IPv4 Header Checksum field checks for errors;

2. The encapsulated protocol (TCP, UDP) checks for errors;

3. Errors in the encapsulated data cannot be detected.

Solution

2. The encapsulated protocol (TCP, UDP) checks for errors.

Question 4

Which field of an IPv4 header is variable in length?

1. Options;

2. Header Checksum;

3. Total Length;

4. IHL;

Solution

1. Options.

Question 5

Which bit will be set to 1 on all IPv4 packet fragments except the last fragment?

1. Fragment Offset bit;

2. More Fragments bit;

3. Don't Fragment bit;

4. Packet Fragment bit;

Solution

2. More Fragments bit.