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Copyright (c) 2001 Transcender LLC. All rights reserved.
Date: 3/26/2003
Custom Quiz
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Name: CCNA class
Section
Difficulty
2. WAN Protocols
Easy
Status:
Incomplete
Topic:
Acronym, HSSI
D24. What does the acronym HSSI denote?
Answer: The acronym HSSI denotes High-Speed Serial
Interface. HSSI is a standard for serial network
connections over WAN links. The high-speed
connections can be up to 52 Mbps.
Section
Difficulty
2. WAN Protocols
Easy
Status:
Incomplete
Topic:
Acronym, TE2
B8. What does the acronym TE2 denote?
Answer: The acronym TE2 denotes terminal equipment
2. TE2 devices predate Integrated Services Digital
Network (ISDN) standards and, therefore, require a
terminal adapter (TA) to connect to an ISDN network.
Section
Difficulty
2. WAN Protocols
Easy
Status:
Incomplete
Topic:
Acronym, SPID
D49. What does the acronym SPID denote?
Answer: The acronym SPID denotes Service Profile
Identifier. A SPID is a number designated by service
providers to Integrated Services Digital Network (ISDN)
devices in order to define what subscription services a
device can access.
Section
Difficulty
2. WAN Protocols
Easy
Status:
Incomplete
Topic:
Acronym, ABM
A49. What does the acronym ABM denote?
Answer: The acronym ABM denotes Asynchronous
Balanced Mode. ABM is a communication mode of
High-Level Data-Link Control (HDLC) that enables
point-to-point communication between two stations;
either station can initiate the transmission.
Question
Answer & Response
1
Section
Difficulty
2. WAN Protocols
Easy
Status:
Incomplete
Topic:
Acronym, TA
D43. What does the acronym TA denote?
Answer: The acronym TA denotes terminal adapter. A
TA connects terminal equipment 2 (TE2) devices to
terminal equipment 1 (TE1) devices. The TE1 wiring can
then be connected to an NT1 device in order to connect
to a two-wire Integrated Services Digital Network (ISDN)
network.
Section
Difficulty
2. WAN Protocols
Easy
Status:
Incomplete
Topic:
Acronym, PCR
F44. What does the acronym PCR denote?
Answer: The acronym PCR denotes Peak Cell Rate. A
PCR is a parameter that specifies the maximum rate at
which a source device can transmit data on an
Asynchronous Transfer Mode (ATM) network.
Section
Difficulty
2. WAN Protocols
Easy
Status:
Incomplete
Topic:
Acronym, PSTN
C44. What does the acronym PSTN denote?
Answer: The acronym PSTN denotes Public Switched
Telephone Network. The PSTN is the collection of
telephone networks and services that are available
worldwide.
Section
Difficulty
2. WAN Protocols
Easy
Status:
Incomplete
Topic:
Acronym, CIR
A16. What does the acronym CIR denote?
Answer: The acronym CIR denotes Committed
Information Rate. The CIR is a rate at which a Frame
Relay network will transfer data; CIR is averaged over a
minimum period of time and is measured in bits per
second (bps).
Section
Difficulty
2. WAN Protocols
Medium
Status:
Incomplete
Topic:
ISDN
B52. Which series of Integrated Services Digital
Network (ISDN) protocols define ISDN telephone
network standards?
Answer: ISDN E-series protocols define ISDN telephone
network standards.
Question
Answer & Response
2
Section
Difficulty
2. WAN Protocols
Easy
Status:
Incomplete
Topic:
Acronym, MCR
C16. What does the acronym MCR denote?
Answer: The acronym MCR denotes Minimum Cell
Rate. The MCR is a parameter used for traffic
management on Asynchronous Transfer Mode (ATM)
networks; MCR is set by the ATM Forum and is
specifically used for Area Border Router (ABR)
transmissions.
Section
Difficulty
2. WAN Protocols
Easy
Status:
Incomplete
Topic:
Acronym, BECN
D45. What does the acronym BECN denote?
Answer: The acronym BECN denotes Backward Explicit
Congestion Notification. A BECN is a bit set on a Frame
Relay network that is found in frames traveling in the
opposite direction of frames that are encountering
network congestion.
Section
Difficulty
2. WAN Protocols
Easy
Status:
Incomplete
Topic:
Acronym, LAPD
F20. What does the acronym LAPD denote?
Answer: The acronym LAPD denotes Link Access
Procedure on the D channel. LAPD is an Integrated
Services Digital Network (ISDN) protocol at the
Data-Link layer that supports the full-duplex data
channel, or D channel, of ISDN.
Section
Difficulty
2. WAN Protocols
Easy
Status:
Incomplete
Topic:
Acronym, ATM
C17. What does the acronym ATM denote?
Answer: The acronym ATM denotes Asynchronous
Transfer Mode. ATM is an international standard
designed to optimize the advantages of transmitting
data, voice and video over high-speed transmission
lines, such as T3.
Question
Answer & Response
3
Section
Difficulty
2. WAN Protocols
Easy
Status:
Incomplete
Topic:
Terminology
E10. What is the meaning of the term
X.25
?
Answer: The term
X.25
refers to a packet-relay standard
set by the ITU-T that defines communications between
Data Terminal Equipment (DTE) and Data
Communications Equipment (DCE) devices on a
network.
Section
Difficulty
2. WAN Protocols
Hard
Status:
Incomplete
Topic:
PPP Sessions
F67. What protocol enables multiple Network-layer
protocols to be encapsulated and sent over a
Point-to-Point Protocol (PPP) link?
Answer: The Network Control Protocol (NCP) enables
multiple Network-layer protocols to be encapsulated and
sent over a PPP link. NCP functions at the
Network-layer protocol phase when a PPP session is
initiated.
Section
Difficulty
2. WAN Protocols
Easy
Status:
Incomplete
Topic:
Acronym, DCE
E53. What does the acronym DCE denote?
Answer: The acronym DCE denotes Data
Communications Equipment. One example of data
communications equipment is a modem.
Section
Difficulty
2. WAN Protocols
Medium
Status:
Incomplete
Topic:
Frame Relay, Commands
C15. What command, other than the
show interface
command
, will allow you to view the Local
Management Interface (LMI) traffic statistics that have
been exchanged between a local router and a Frame
Relay switch?
Answer: The
show frame lmi
command will allow you to
view the LMI traffic that has been exchanged between a
local router and a Frame Relay switch.
Section
Difficulty
2. WAN Protocols
Easy
Status:
Incomplete
Topic:
Acronym, PPP
A63. What does the acronym PPP denote?
Answer: The acronym PPP denotes Point-to-Point
Protocol. Point-to-Point Protocol is a protocol that is
commonly used for accessing the Internet through a
dial-up connection.
Question
Answer & Response
4
Section
Difficulty
2. WAN Protocols
Easy
Status:
Incomplete
Topic:
Acronym, DXI
E17. What does the acronym DXI denote?
Answer: The acronym DXI denotes Data Exchange
Interface. DXI is a standard that describes the
effectiveness of devices, such as a bridge, to function as
a front-end processor for Asynchronous Transfer Mode
(ATM) networks.
Section
Difficulty
2. WAN Protocols
Hard
Status:
Incomplete
Topic:
Routers
B32. What type of device is equipped to process
Integrated Services Digital Network (ISDN) protocols
and needs only a network termination 1 (NT1) to
connect to an ISDN Basic Rate Interface (BRI)?
Answer: A terminal equipment 1 (TE1) device is
equipped to process ISDN protocols and needs only an
NT1 to connect to an ISDN BRI.
Section
Difficulty
2. WAN Protocols
Easy
Status:
Incomplete
Topic:
Acronym, BRI
C64. What does the acronym BRI denote?
Answer: The acronym BRI denotes Basic Rate Interface.
BRI is a standard Integrated Services Digital Network
(ISDN) circuit-switched communication for voice, video
and data transmission.
Section
Difficulty
2. WAN Protocols
Easy
Status:
Incomplete
Topic:
Acronym, ACR
F32. What does the acronym ACR denote?
Answer: The acronym ACR denotes Allowed Cell Rate.
ACR is defined by the Asynchronous Transfer Mode
(ATM) Forum and is used to manage network traffic;
ACR varies between the Minimum Cell Rate (MCR) and
the Peak Cell Rate (PCR) and is adjusted by using
congestion control parameters.
Question
Answer & Response
5
Section
Difficulty
2. WAN Protocols
Easy
Status:
Incomplete
Topic:
Acronym, DTR
B13. What does the acronym DTR denote?
Answer: The acronym DTR denotes Data Terminal
Ready. A DTR is a circuit that communicates to Data
Communications Equipment (DCE) that a Data Terminal
Equipment (DTE) is ready to receive or transmit data.
For example, a DTR would provide an ISP with
information that a user's modem is ready to receive and
transmit data.
Section
Difficulty
2. WAN Protocols
Easy
Status:
Incomplete
Topic:
Acronym, TE1
E42. What does the acronym TE1 denote?
Answer: The acronym TE1 denotes terminal equipment
1. A TE1 is a device type that is compatible with
Integrated Services Digital Network (ISDN) standards
and, therefore, can connect directly to an ISDN network.
TE1 devices have a four-wire, twisted-pair digital
interface.
Section
Difficulty
2. WAN Protocols
Easy
Status:
Incomplete
Topic:
Acronym, CSMA/CD
F22. What does the acronym CSMA/CD denote?
Answer: The acronym CSMA/CD denotes Carrier Sense
Multiple Access with Collision Detect. CSMA/CD is a
protocol designed to help prevent frame collisions on
Ethernet networks.
Section
Difficulty
2. WAN Protocols
Hard
Status:
Incomplete
Topic:
PPP Sessions
D6. At what phase of Point-to-Point Protocol (PPP)
session initiation does CHAP function when it has been
configured?
Answer: When CHAP has been configured, it functions
at the authentication phase of PPP session initiation.
The authentication phase of PPP session establishment
authenticates the link between the two hosts.
Question
Answer & Response
6
Section
Difficulty
2. WAN Protocols
Easy
Status:
Incomplete
Topic:
Acronym, NT1
F61. What does the acronym NT1 denote?
Answer: The acronym NT1 denotes network termination
1. NT1 is an Integrated Services Digital Network (ISDN)
designation given to devices that are capable of
interpreting ISDN standards. NT1 implements ISDN
specifications for the Physical layer.
Section
Difficulty
2. WAN Protocols
Easy
Status:
Incomplete
Topic:
Acronym, CER
F51. What does the acronym CER denote?
Answer: The acronym CER denotes Cell Error Ratio. In
Asynchronous Transfer Mode (ATM), CER is the ratio of
transmitted cells that contain errors to the total number
of cells that were sent within a certain time.
Section
Difficulty
2. WAN Protocols
Hard
Status:
Incomplete
Topic:
Terminology
C57. What is the designation for equipment that cannot
process Integrated Services Digital Network (ISDN)
protocols and, therefore, requires a terminal adapter in
order to connect to an ISDN line?
Answer: A terminal equipment 2 (TE2) device requires a
terminal adapter in order to connect to ISDN.
Section
Difficulty
2. WAN Protocols
Easy
Status:
Incomplete
Topic:
Acronym, DSU
D51. What does the acronym DSU denote?
Answer: The acronym DSU denotes Data Service Unit.
A DSU is a digital communication device that is used in
conjunction with a Channel Service Unit (CSU) to
connect a local area network (LAN) to a transmission
facility, such as a T1 line.
Section
Difficulty
2. WAN Protocols
Easy
Status:
Incomplete
Topic:
Acronym, CLR
B2. What does the acronym CLR denote?
Answer: The acronym CLR denotes Cell Loss Ratio.
CLR is the ratio of discarded cells to cells that are
successfully delivered on Asynchronous Transfer Mode
(ATM) networks.
Question
Answer & Response
7
Section
Difficulty
2. WAN Protocols
Medium
Status:
Incomplete
Topic:
Frame Relay
F15. What does a switch change in a Frame Relay
packet header to notify the destination device that the
packet encountered congestion when it traveled
through the network?
Answer: The switch changes the Forward-Explicit
Congestion Notification (FECN) bit to 1 in the Frame
Relay packet header; this bit indicates to the destination
device that the packet encountered congestion as it
traveled through the network.
Section
Difficulty
2. WAN Protocols
Easy
Status:
Incomplete
Topic:
Acronym, CSU
C3. What does the acronym CSU denote?
Answer: The acronym CSU denotes Channel Service
Unit. A CSU is a digital device that is used to connect a
Data Terminal Equipment (DTE) to a local digital
telephone loop; a CSU is used in conjunction with a
Data Service Unit (DSU).
Section
Difficulty
2. WAN Protocols
Hard
Status:
Incomplete
Topic:
Encapsulation
D39. You want to connect your Cisco router to your ISP
by using Frame Relay. You have contacted a network
administrator at the ISP, and you have discovered that
you will be connecting to a device that is not a Cisco
device. What encapsulation type should you configure
on the Cisco router?
Answer: You should configure the Internet Engineering
Task Force (IETF) encapsulation type on the Cisco
router. IETF is used to encapsulate data traveling
between a Cisco router and a non-Cisco router. If the
data is traveling between two Cisco routers, then you
should use the cisco encapsulation type, which is the
default type on a Cisco router.
Section
Difficulty
2. WAN Protocols
Easy
Status:
Incomplete
Topic:
Acronym, FRAD
E65. What does the acronym FRAD denote?
Answer: The acronym FRAD denotes Frame Relay
Access Device. A FRAD device is a device that provides
a connection between a Frame Relay wide area network
(WAN) and a local area network (LAN); a FRAD device
encapsulates network packets into a format that can be
transmitted over frame relay circuits. Many Cisco routers
and bridges have built-in FRAD technology.
Question
Answer & Response
8
Section
Difficulty
2. WAN Protocols
Hard
Status:
Incomplete
Topic:
Authentication
D21. What are the two authentication protocols used
with Point-to-Point Protocol (PPP) in reference to Cisco
routers?
Answer: The two authentication protocols that are used
with PPP on Cisco routers are Password Authentication
Protocol (PAP) and Challenge-Handshake
Authentication Protocol (CHAP). CHAP periodically
checks the link between the router and the host to
ensure the router is communicating with the same host
that initiated the link. PAP only performs authentication
at the time the link is initially established.
Section
Difficulty
2. WAN Protocols
Easy
Status:
Incomplete
Topic:
Acronym, ADSU
A10. What does the acronym ADSU denote?
Answer: The acronym ADSU denotes ATM Data Service
Unit. An ADSU is a terminal adapter that is used to
access an Asynchronous Transfer Mode (ATM) network
through a High-Speed Serial Interface (HSSI) device.
Section
Difficulty
2. WAN Protocols
Hard
Status:
Incomplete
Topic:
Passwords
B9. You want to set a password for the auxiliary port for
a Cisco router. The router is in global configuration
mode, and you have typed
line aux 0
to indicate the
port you are configuring. What is the next command
you should issue?
Answer: In order to set a password for the auxiliary port,
you should issue the
login
command next. The
login
command instructs the router to prompt the user for
authentication.
Section
Difficulty
2. WAN Protocols
Easy
Status:
Incomplete
Topic:
Acronym, FRAS
B25. What does the acronym FRAS denote?
Answer: The acronym FRAS denotes Frame Relay
Access Support. FRAS is a Cisco IOS software feature
that enables Token Ring, Ethernet, Synchronous
Data-Link Control (SDLC) and Frame Relay-connected
IBM devices to link with other IBM devices on a Frame
Relay network.
Question
Answer & Response
9
Section
Difficulty
2. WAN Protocols
Easy
Status:
Incomplete
Topic:
Acronym, LAPB
A21. What does the acronym LAPB denote?
Answer: The acronym LAPB denotes Link Access
Procedure Balanced. LAPB is a Data-Link layer protocol
used on wide area networks (WANs) for data delivery
over a Point-to-Point Protocol (PPP) serial link.
Section
Difficulty
2. WAN Protocols
Easy
Status:
Incomplete
Topic:
Acronym, UTP
C40. What does the acronym UTP denote?
Answer: The acronym UTP denotes unshielded
twisted-pair. UTP is a type of copper cabling used to
connect devices on a network.
Section
Difficulty
2. WAN Protocols
Easy
Status:
Incomplete
Topic:
Acronym, DCC
A32. What does the acronym DCC denote?
Answer: The acronym DCC denotes Data Country
Code. DCC is an Asynchronous Transfer Mode (ATM)
address format that is used on private networks.
Section
Difficulty
2. WAN Protocols
Easy
Status:
Incomplete
Topic:
Acronym, SP
A47. What does the acronym SP denote?
Answer: The acronym SP denotes Switch Processor.
SPs are responsible for controlling extended bus
operations.
Section
Difficulty
2. WAN Protocols
Easy
Status:
Incomplete
Topic:
Acronym, LCP
B43. What does the acronym LCP denote?
Answer: The acronym LCP denotes Link Control
Protocol. LCP is a protocol within Point-to-Point Protocol
(PPP) that establishes, configures and terminates a PPP
connection. LCP also provides PPP with authentication
protocol options, such as PAP and CHAP.
Question
Answer & Response
10
Section
Difficulty
2. WAN Protocols
Hard
Status:
Incomplete
Topic:
ISDN
A26. What additional piece of equipment is required to
connect to Integrated Services Digital Network (ISDN) if
the router does not have an appropriate interface for
the Basic Rate Interface (BRI)?
Answer: In order to connect to ISDN with a router that
does not have an appropriate interface for the BRI, a
terminal adapter is required. When using a terminal
adapter (TA) to connect a router to ISDN, the TA is
connected to one of the router's serial interfaces.
Section
Difficulty
2. WAN Protocols
Medium
Status:
Incomplete
Topic:
ISDN
F38. What Integrated Services Digital Network (ISDN)
protocol prefix defines switching and signaling?
Answer: The ISDN protocol prefix that defines switching
and signaling is Q. ISDN protocols are defined by the
International Telecommunication Union (ITU).
Section
Difficulty
2. WAN Protocols
Easy
Status:
Incomplete
Topic:
Acronym, ISDN
E22. What does the acronym ISDN denote?
Answer: The acronym ISDN denotes Integrated
Services Digital Network. ISDN is a dial-up, digital
communication service provided by telephone networks.
ISDN enables voice, video and data transmissions over
standard copper telephone wires.
Section
Difficulty
2. WAN Protocols
Hard
Status:
Incomplete
Topic:
Encapsulation
E55. What is the default encapsulation protocol that is
used by Cisco routers over synchronous serial links?
Answer: High-Level Data Link Control (HDLC) is the
default encapsulation protocol that is used by Cisco
routers over synchronous serial links.
Section
Difficulty
2. WAN Protocols
Easy
Status:
Incomplete
Topic:
Acronym, BIP
E18. What does the acronym BIP denote?
Answer: The acronym BIP denotes Bit Interleaved
Parity. BIP is a method of monitoring errors on a link
within an Asynchronous Transfer Mode (ATM) network.
Question
Answer & Response
11
Section
Difficulty
2. WAN Protocols
Easy
Status:
Incomplete
Topic:
Acronym, DDR
D36. What does the acronym DDR denote?
Answer: The acronym DDR denotes dial-on-demand
routing. DDR enables routing over telephone or
Integrated Services Digital Network (ISDN) lines by
using a modem.
Section
Difficulty
2. WAN Protocols
Easy
Status:
Incomplete
Topic:
Acronym, BPDU
F64. What does the acronym BPDU denote?
Answer: The acronym BPDU denotes Bridge Protocol
Data Unit. A BPDU is a packet that is periodically sent
by a bridge in order to exchange information with the
bridges on a network.
Section
Difficulty
2. WAN Protocols
Hard
Status:
Incomplete
Topic:
Terminology
D5. What is the meaning of the term
reference point
in
relation to Integrated Services Digital Network (ISDN)?
Answer: The term
reference point
refers to a series of
specifications that defines the logical interfaces that
connect various types of equipment in an ISDN network.
ISDN includes four different reference points: R, S, T
and U.
Section
Difficulty
2. WAN Protocols
Easy
Status:
Incomplete
Topic:
Acronym, MIP
B16. What does the acronym MIP denote?
Answer: The acronym MIP denotes Multichannel
Interface Processor. An MIP is an interface processor on
Cisco 7000 series routers that provides two channelized
connections, either T1 or E1, by using serial cables
connected to a Channel Service Unit (CSU).
Section
Difficulty
2. WAN Protocols
Easy
Status:
Incomplete
Topic:
Acronym, HDLC
C9. What does the acronym HDLC denote?
Answer: The acronym HDLC denotes High-Level
Data-Link Control. HDLC is a connection-oriented
protocol that is defined at the Data-Link layer of the OSI
reference model.
Question
Answer & Response
12
Section
Difficulty
2. WAN Protocols
Easy
Status:
Incomplete
Topic:
Acronym, DSR
B61. What does the acronym DSR denote?
Answer: The acronym DSR denotes Data Set Ready. A
DSR is an interface circuit in Data Communications
Equipment (DCE). When a DCE is turned on, a DSR is
also activated.
Section
Difficulty
2. WAN Protocols
Easy
Status:
Incomplete
Topic:
Acronym, TE
B67. What does the acronym TE denote?
Answer: The acronym TE denotes terminal equipment.
A TE is any device that is attached to a network and is
compatible with Integrated Services Digital Network
(ISDN).
Section
Difficulty
2. WAN Protocols
Medium
Status:
Incomplete
Topic:
Frame Relay
A28. What is sent to the source device to advise it to
slow down its transfer rate when a Frame Relay
network is congested?
Answer: A Backward-Explicit-Congestion Notification
(BECN) is sent to the source device to advise it to slow
down its transfer rate when a Frame Relay network is
congested.
Section
Difficulty
2. WAN Protocols
Medium
Status:
Incomplete
Topic:
ISDN
C13. Which series of Integrated Services Digital
Network (ISDN) protocols deals with interface issues?
Answer: The I-series of ISDN protocols deals with
interface issues. For example, the I.400 series deals
with User-Network Interfaces (UNI).
Section
Difficulty
2. WAN Protocols
Easy
Status:
Incomplete
Topic:
Acronym, CO
A17. What does the acronym CO denote?
Answer: The acronym CO denotes Central Office. A CO
is the office of the local telephone company where all
loops in a specified area connect. Access to leased lines
and circuit-switching services are also provided by the
CO.
Question
Answer & Response
13
Section
Difficulty
2. WAN Protocols
Easy
Status:
Incomplete
Topic:
Acronym, DLCI
A8. What does the acronym DLCI denote?
Answer: The acronym DLCI denotes data-link
connection identifier. A DLCI is a number that is used to
identify a virtual circuit in a Frame Relay network.
Section
Difficulty
2. WAN Protocols
Easy
Status:
Incomplete
Topic:
Acronym, LMI
E60. What does the acronym LMI denote?
Answer: The acronym LMI denotes Local Management
Interface. LMIs are protocol types that define the
messages that are used between Data Terminal
Equipment (DTE) and Data Communications Equipment
(DCE). One LMI is configured on each serial interface of
a Cisco switch.
Section
Difficulty
2. WAN Protocols
Easy
Status:
Incomplete
Topic:
Acronym, STUN
E12. What does the acronym STUN denote?
Answer: The acronym STUN denotes Serial Tunnel. A
STUN is a feature of Cisco routers that allows a
connection between a High-Level Data-Link Control
(HDLC) and a Synchronous Data-Link Control (SDLC)
link over a serial connection.
Section
Difficulty
2. WAN Protocols
Medium
Status:
Incomplete
Topic:
Terminology
C47. What are the multiple virtual circuits called that
reside on a single serial interface but function as
separate interfaces?
Answer: The multiple virtual circuits that reside on a
single serial interface but function as separate interfaces
are called subinterfaces. Subinterfaces allow different
routing protocols to be assigned to each virtual circuit.
Question
Answer & Response
14
Section
Difficulty
2. WAN Protocols
Easy
Status:
Incomplete
Topic:
Acronym, NT2
E54. What does the acronym NT2 denote?
Answer: The acronym NT2 denotes network termination
2. NT2 is an Integrated Services Digital Network (ISDN)
designation for devices that are not capable of
interpreting ISDN standards. NT2 devices require a
terminal adapter (TA) in order to connect to an ISDN
network.
Section
Difficulty
2. WAN Protocols
Hard
Status:
Incomplete
Topic:
PPP Sessions
F49. At what phase of Point-to-Point Protocol (PPP)
session establishment are Link Control Protocol (LCP)
packets transmitted by both hosts in order to configure
and test the link?
Answer: LCP packets are transmitted by both hosts at
the link-establishment phase when PPP session
establishment is initiated. The LCP packets configure
and test the link at both ends of the connection.
Question
Answer & Response
15