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Business Data Networks and Security, 10e (Panko)

Module A More on TCP



1) A TCP segment begins with octet 8,658 and ends with octet 12,783. What number
does the sending host put in the sequence number field?

A) 8,658

B) 8,659

C) 12,783

D) 12,784

Answer: A



2) A TCP segment begins with octet 8,658 and ends with octet 12,783. What number
does the receiving host put in the acknowledgment number field of the TCP segment that
acknowledges this TCP segment?

A) 8,658

B) 8,659

C) 12,783

D) 12,784

Answer: D



3) A TCP segment carries data octets 456 through 980. The following TCP segment is a
supervisory segment carrying no data. What value is in the sequence number field of the
latter TCP segment?

A) 456

B) 457

C) 980

D) 981

,Answer: D



4) Flow control in TCP depends on the ________ field.

A) acknowledgement number

B) window size

C) both A and B

D) neither A nor B

Answer: C

,Business Data Networks and Security, 10e (Panko)

Module B More on Modulation



1) Amplitude modulation uses two ________ levels.

A) loudness

B) frequency

C) both A and B

Answer: A



2) Phase modulation uses two ________ levels.

A) loudness

B) frequency

C) wave

D) none of the above

Answer: C



3) BPSK uses ________ phase levels.

A) 2

B) 4

C) 8

D) 15

Answer: A



4) BPSK modulation uses two ________.

A) amplitudes

, B) frequencies

C) phases

D) none of the above

Answer: C



5) QPSK modulation uses ________ phases.

A) 2

B) 4

C) 8

D) 15

Answer: B



6) QPSK sends ________ bit(s) per clock cycle.

A) 1

B) 2

C) 4

D) 16

Answer: B