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Question
________ read(s) the destination address in an Ethernet frame.A) The destination host
B) Switches in the network
C) both A and B
D) neither A nor B
Answer
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Related questions
Q:
In IP, the first bit in the second row is ________.
A) 0
B) 31
C) 32
D) 63
Q:
An EUI-48 address was formerly called a(n) ________ address.
A) IPv4
B) IPv6
C) MAC
D) DNS
Q:
Which part of a message is less often in a message compared to the other two parts?
A) header
B) data field
C) trailer
D) All of the above are commonly seen in all messages.
Q:
In a four-step close, which side transmits a FIN segment?
A) the side that initiates the close
B) the other side
C) either side
D) neither side
Q:
In HTTP, which program may initiate communication?
A) browser
B) Webserver program
C) both A and B
D) neither A nor B
Q:
A message's syntax is its ________.
A) protocol
B) message order
C) meaning
D) structure
Q:
Application message fragmentation is done on the ________.
A) source host
B) destination host
C) both A and B
D) neither A nor B
Q:
In the Five General Layers Standard, which layer's standards govern application message fragmentation?
A) 2
B) 3
C) 4
D) 5
Q:
Which layer's standards govern signaling?
A) 1
B) 2
C) 3
D) 4
Q:
What layer number is the data link layer?
A) 1
B) 2
C) 3
D) 4
Q:
When an application program transmits a message, what will the first field be in the message that is sent over the transmission link?
A) application header
B) packet header
C) transport header
D) frame header
Q:
Switches make decisions based on the ________.
A) physical link address
B) source data link layer address
C) destination data link layer address
D) phase of the moon
Q:
The most widely used single network address is the ________.
A) EUI-48 address
B) MAC address
C) IP address
D) PPP address
Q:
If a transmission link has a relatively high error rate, ________.
A) fragmentation is likely to reduce delivery time for the entire application message
B) fragmentation is likely to increase delivery time for the entire application message
C) either A or B
D) neither A nor B
Q:
In SaaS, the user normally ________.
A) purchases software
B) pays for software by amount of use
C) both A and B
D) neither A nor B
Q:
IaaSs own _________.
A) application software
B) servers
C) both A and B
D) neither A nor B
Q:
A ________ may have multiple ________.
A) physical server, virtual machines
B) virtual machine, physical servers
C) both A and B
D) neither A nor B
Q:
Who controls the Internet?
A) the U.S. government
B) the United Nations
C) the IETF
D) no one
Q:
An Active Directory domain ________.
A) has only a single domain controller
B) makes all servers domain controllers
C) must have its servers organized as a tree
D) none of the above
Q:
Which of the following is used to query a directory server to get someone's e-mail address?
A) LDAP
B) IMAP
C) SNMP
D) HTTP
Q:
Message units are a time and distance pricing method that can be used to charge for local calls.
Q:
Local calls are always billed on a flat rate basis where the customer pays a monthly fee for unlimited local calling.
Q:
In TDM, there are usually more frames than slots.
Q:
In the United States, IXCs provide telephone transmission service ________.
A) within a LATA
B) between LATAs
C) between the United States and another country
D) all of the above
Q:
With 900 numbers, the ________ pays and pays ________ per minute than direct distance dialing.
A) caller, more
B) caller, less
C) called party, more
D) called party, less
Q:
With 888 numbers, the ________ pays and pays ________ per minute than direct distance dialing.
A) caller, more
B) caller, less
C) called party, more
D) called party, less
Q:
For PBXs, call forwarding is ________.
A) a user service
B) an attendant service
C) a management service
Q:
In data wiring, there need to be four wires for each computer on the floor in ________.
A) horizontal distribution
B) vertical distribution
C) both A and B
D) neither A nor B
Q:
Satellite ________ operate on a point-to-point basis.
A) uplinks
B) downlinks
C) both A and B
D) neither A nor B
Q:
Because of the curvature of the earth, microwave systems that must travel over long distances need ________.
A) to operate at low frequencies
B) to operate at high frequencies
C) repeaters
D) mirrors