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7Àå

 

Question 1:

What are two token-ring frame fields, within the Access Control Byte, that control priority?

   reservation field and priority field

   relay field and priority field

   remote field and control field

   restriction field and placement field

 

Question 2:

Which of the 4 FDDI specifications defines how the medium is accessed?

   Media Access Control (MAC)

   Physical Layer Protocol (PHY)

   Physical Layer Medium (PMD)

   Station Management (SMT)

 

Question 3:

What are two types of token ring frames?

   BPU and ACK

   802.2 and 802.5

   data/command and token

   NCP and LCP

 

Question 4:

Which best describes a network segment?

   section of a network containing a predetermined number of addressable services

   section of a network that is a logical grouping based on MAC addresses

   section of a network that contains Token Ring topology

   section of a network bounded by routers, switches, or bridges

 

Question 5:

Which of the following best describes a broadcast storm?

   A frame that will be sent to one node on a network

   When too many broadcasts are sent out over the network

   A section of a network that is bounded by bridges, routers, or switches

   The network areas within which frames that have collided are propag

 

Question 6:

FDDI and token-ring share which of the following features?

   operate at the same speed

   use a ring topology

   use CSMA/CD

   use of dual rings

 

Question 7:

What is the relationship between an Ethernet version 2 header and the header of an 802.3 frame?

   The Ethernet version 2 header is much longer than the header of an 802.3 frame.

   The Ethernet version 2 header is much shorter than the header of an 802.3 frame.

   The two headers are the same length as each other.

   The two headers are completely different from each other.

 

Question 8:

Which of the following statements are true of routers?

   They are passive.

   They operate only at the data link layer.

   They base forwarding decisions on Layer 2 addresses.

   They base forwarding decisions on Layer 3 protocol addresses.

 

Question 9:

Which device can significantly reduce collisions?

   hub

   NIC

   switch

   transceiver

 

Question 10:

Which fiber mode characteristic is recommended for inter-building connectivity?

   single-mode

   multi-mode

   intra-mode

   inter-mode

 

Question 11:

Which of the following is true concerning bridges?

   They forward all data packets to other segments of the network.

   They can restrict unauthorized access to files by reading the filename from the header.

   They forward packets based on IP addresses.

   They can improve network performance.

 

Question 12:

On a LAN, what part of a host connects to the media?

   media interface port

   serial port

   MAC card

   NIC card

 

Question 13:

How does a token-ring topology differ from an Ethernet topology?

   Token-ring is deterministic.

   Token-ring networks have increased collisions.

   Token-ring uses 802.3 and Ethernet uses 802.5.

   Token-ring operates at 10 Mbps and Ethernet at 16 Mbps.

 

Question 14:

What is the process of each port of a switch being its own small bridge?

   macrosegmentation

   microsegmentation

   port-centric

   none of the above

 

Question 15:

Why is Ethernet known as a best-effort delivery system?

   If a destination device detects any errors, then the data packet is discarded and the sender notified.

   The destination device notifies the source only if it receives all of the data.

   The destination only notifies the source if the data was corrupted.

   If the destination must discard the data, then it does not notify the source

 

Question 16:

Which LAN technology uses CSMA/CD?

   Ethernet

   Token Ring

   FDDI

   All of the above.

 

Question 17:

What is the most widely used local area network (LAN) technology?

   Token Ring

   Ethernet

   ArcNet

   FDDI

 

Question 18:

What private company created Ethernet?

   Apple

   IBM

   Xerox

   Cisco

 

Question 19:

What device builds a MAC address table?

   passive hub

   bridge

   active hub

   transceiver

 

Question 20:

What can be done if the area of the LAN is more than 200 meters in diameter?

   a repeater could be installed to extend the network

   another server could be used to extend the network

   special NICs can be purchased to extend the network

   all of the above

 

Question 21:

What is true of 10BaseT signals?

   They use Manchester encoding.

   They combine both clock and data information into a self-synchronizing stream of signals.

   They are designed to send and receive signals over a segment that consists of 4 wires.

   All of the above are true