Semester 4 - CHAPTER 6 Frame Relay

Semester 4 - CHAPTER 6 – Frame Relay

What is a high performance, efficient data technology used in networks throughout the world? [6.1.1]

A. Frame Relay

B. ISDN

C. PPP

No standards for interconnecting equipment inside a Frame Relay network currently exist. [6.1.3]

A. True

B. False

Which of the following provides Frame Relay’s flexibility and efficient use of bandwidth? [6.1.4]

A. Multicasting

B. Multihoming

C. Multiplexing

D. None of these

Which of the following is the correct order of a Frame Relay frame? [6.1.5]

A. Flag/Data/FCS/Address/Flag

B. Flag/FCS/Address/Data/Flag

C. Flag/Address/Data/FCS/Flag

D. None of these

A Frame Relay’s DLCI address is limited to how many bits? [6.1.5]

A. 8

B. 10

C. 16

D. 24

Which of the following are functions of LMI? [6.2.1]

A. To determine the operational status of various PVCs that the router knows about

B. To transmit keepalive packets to ensure that the PVC stays up and does not shut down due to inactivity

C. To tell the router what PVCs are available

D. All of these

What helps verify the integrity of logical and physical links? [6.2.2]

A. Status messages

B. Status-enquiry messages

C. Both A and B

D. None of these

What allows the router to automatically build the Frame Relay map? [6.3.2]

A. ARP

B. RARP

C. Inverse ARP

D. None of these

The Frame Relay switching table consists of how many entries? [6.3.2]

A. 4 – 4 for incoming port and DLCI

B. 4 – 4 for outgoing port and DLCI

C. 4 – 2 for incoming port and DLCI and 2 for outgoing port and DLCI

D. None of these

What reduces routing loops by not allowing a routing update received on one physical interface to be sent back out that same interface? [6.4.2]

A. Split horizon

B. Poison Reverse

C. Keepalives

D. None of these

Inverse ARP is not default and needs to be configured manually[6.5.1]

A. True

B. False

At which 2 layers of the OSI model does Frame Relay operate? [6.1.1]

A. Application

B. Transport

C. Network

D. Data link

E. Physical

Is Frame Relay Connection Oriented or Connection-less? [6.1.1]

A. Connection-less

B. Connection oriented

What is network equipment that interfaces to the DTE called? [6.1.1]

A. DCE

B. TDM

C. TA

D. TE1

User devices are often referred to as? [6.1.1]

A. Host

B. DCE

C. DTE

D. NT1

The clock speed of the local loop connection to the frame relay cloud. The rate at which data travels into or out of the network? [6.1.2]

A. Access Rate

B. DLCI

C. CIR

D. Committed Burst

E. Excess Burst

F. FECN

G. BECN

H. DE

Number that identifies the end point in a frame relay network. [6.1.2]

A. Access Rate

B. DLCI

C. CIR

D. Committed Burst

E. Excess Burst

F. FECN

G. BECN

H. DE

Only significant in the local network. Switch uses this between a pair of routers to create a PVC? [6.1.2]

A. Access Rate

B. DLCI

C. CIR

D. LMI

E. Excess Burst

F. FECN

G. BECN

H. DE

Signaling standard between the CPE and the Frame Relay switch that is responsible for managing the connection and managing the status between the devices.[6.1.2]

A. Access Rate

B. DLCI

C. CIR

D. LMI

E. Excess Burst

F. FECN

G. BECN

H. DE

Guaranteed rate in bits per second that the service provider commits to providing? [6.1.2]

A. Access Rate

B. DLCI

C. CIR

D. Committed Burst

E. Excess Burst

F. FECN

G. BECN

H. DE

The maximum number of bits that the switch agrees to transfer during a timer interval? [6.1.2]

A. Access Rate

B. DLCI

C. CIR

D. Committed Burst

E. Excess Burst

F. FECN

G. BECN

H. DE

The maximum number of uncommitted bits that the frame relay switch attempts to transfer beyond the CIR. [6.1.2]

A. Access Rate

B. DLCI

C. CIR

D. Committed Burst

E. Excess Burst

F. FECN

G. BECN

H. DE

A bit set in a frame that notifies a DTE that congestion avoidance procedures should be initiated by the receiving device. [6.1.2]

A. Access Rate

B. DLCI

C. CIR

D. Committed Burst

E. Excess Burst

F. FECN

G. BECN

H. DE

A bit set in a frame that notifies a DTE that congestion avoidance procedures should be initiated by the source router? [6.1.2]

A. Access Rate

B. DLCI

C. CIR

D. Committed Burst

E. Excess Burst

F. FECN

G. BECN

H. DE

A set bit that indicates the frame may be discarded in preference to other frames if congestion occurs. [6.1.2]

A. Access Rate

B. DLCI

C. CIR

D. Committed Burst

E. Excess Burst

F. FECN

G. BECN

H. DE

Who set the standard for Frame Relay? [6.1.1]

A. CCITT

B. PDN

C. CCSI

Which is NOT a function of the LMI? [6.2.1]

A. To transmit keepalive packets to keep the virtual circuit up

B. To tell the router about available PVCs

C. To determine using hop count which PVC would be preferred

What is the output of the command: Show Frame Relay PVC? [6.5.2]

A. Displays status of set protocol

B. Displays status of router

C. Displays status of all configured connections

What are subinterfaces? [6.4.1]

A. Smaller, less complex interfaces

B. The outer interfaces of a Frame Relay topology

C. Logical subdivisions of a physical interface

How large can a DLCI address be? [6.1.5] [6.1.6]

A. 8 bytes

B. 8 bits

C. 10 bits

D. 2 bytes

Frame Relay is a way of sending information over a WAN by dividing data into? [6.1.1]

A. Segments

B. Packets

C. Frames

D. Bits

What are logical subdivisions of a physical interface? [6.4.1]

A. VLANs

B. Serial Interfaces

C. Subinterfaces

D. Ethernet Interfaces

What reduces routing loops by not allowing a routing update received on one physical interface to be sent back out that same interface? [6.4.2]

A. Poison Reverse

B. Hold-down timers

C. Split Horizon

D. Maximum Hop Count

Subinterfaces can support the following types of connections? [6.4.3]

A. Point to point

B. Multipoint

C. Both A and B

D. None of the above

What does CCITT stand for? [6.1.1]

A. Consultative Committee for International Telephone and Telegraph

B. Committee for Cooperative Interactive Technological Telecommunications

What are the typical speeds at which user devices connect the network equipment? [6.1.3]

A. 10 – 28.8 Kbps

B. 33 – 60 Mbps

C. 56Kbps- 2Mbps

What is indicated by the Frame Relay Flag Field? [6.1.5]

A. Indicates the beginning and the end of the Frame Relay frame

B. Indicates the DLCI value

C. Indicates an error in the data transfer, and signals to stop transmitting

What is FCS and what does it stand for? [6.1.5]

A. Frame Connection Signal – checks to see which frames are enabled with DLCIs.

B. Frame Connection Stand-alone – a stand alone protocol which enables asynchronous data transmission

C. Frame Check Sequence- used to ensure the integrity of transmitted data

What are three LMI types that can be invoked by the router? [6.2.1]

A. Ansi, Q933A, EIA332

B. Cisco, RT563, TIA/EIA 933

C. Ansi, Q933A, Cisco

LMI extension referred to as common and expected to be implemented by everyone who adopts the specification. [6.2.1]

A. Multicasting

B. Virtual circuit status messages

C. Global addressing

D. Simple flow control