42. Sequence numbers and acknowledgment numbers are found where?
a. UDP header
b. TCP header
c. Initial sequence number
d. Application layer
43. What organization is responsible for Ethernet standards?
a. ISO
b. IEEE
c. EIA
d. IEC
136 Chapter 1: Building a Simple Network
44. What are three characteristics of Ethernet 802.3? (Choose three.)
a. Based on the CSMA/CD process
b. Is a standard that has been replaced by Ethernet II
c. Speci?¬?es the physical layer (Layer 1)
d. Developed in the mid-1970s
e. Speci?¬?es the MAC portion of the data link layer (Layer 2)
f. Also referred to as thick Ethernet
45. Which statement about an Ethernet address is accurate?
a. The address used in an Ethernet LAN directs data to the proper receiving
location.
b. The source address is the 4-byte hexadecimal address of the NIC on the computer
that is generating the data packet.
c. The destination address is the 8-byte hexadecimal address of the NIC on the LAN
to which a data packet is being sent.
d. Both the destination and source addresses consist of a 6-byte hexadecimal
number.
46. Which statement about MAC addresses is accurate?
a. A MAC address is a number in hexadecimal format that is physically located on
the NIC.
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