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Test your basic knowledge |
Wide Area Netwoking Protocols
Start Test
Study First
Subject
:
it-skills
Instructions:
Answer 50 questions in 15 minutes.
If you are not ready to take this test, you can
study here
.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.
This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. To connect two DTE networks together through a DCE network
Wide Area Network (WAN)
Authentication phase
Packet Switching - Circuit Switching - Leased Lines
High-Level Data Link Control (HDLC)
2. Used to create point-to-point links between different vendors' equipment; uses a Network Control Protocol field in the Data Link header to identify the Network layer protocol; allows authentication and multilink connections and can be run over asynch
Authentication phase
HDLC
HDLC - LCP - NCP
Point-to-Point Protocol (PPP)
3. A connection-oriented protocol at the Data Link layer for use with X.25; causes a tremendous amount of overhead because of its strict time-out and windowing techniques; can also be used as a simple data link transport
Link Access Procedure - Balanced (LAPB)
HDLC
Point-to-Point Protocol (PPP)
High-Level Data Link Control (HDLC)
4. The default encapsulation used by Cisco routers over synchronous serial links
Toll network
High-Level Data Link Control (HDLC) protocol
Point-to-Point Protocol (PPP)
HDLC - Frame Relay - PPP
5. What is the default serial encapsulation on a Cisco router?
PPP
EIA/TIA-232-C - V.24 - V.35 - and ISDN
HDLC
High-Level Data Link Control (HDLC) protocol
6. Method of establishing and configuring different Network layer protocols
Show interface
Local loop
Network control Protocol (NCP)
Asynchronous Transfer Mode (ATM)
7. If you had one serial interface on your router and needed to connect many remote locations - which Data Link encapsulation should you use?
Point-to-Point Protocol (PPP)
Link Control Protocol (LCP)
HDLC
Frame Relay
8. Which of the following encapsulations was considered an upgrade from x.25?
Packet switching
Network layer protocol phase
Leased lines
Frame Relay
9. Includes the area from the CSU/DSU - through the provider's wiring and switches - all the way to the CSU/DSU at the other end; provides clocking to the DTE-connected interface (the router's serial interface)
Point-to-Point Protocol (PPP)
data terminal equipment (DTE)
DCE network
Wide Area Network
10. Data Link and Physical layer specification that provides high performance; successor to X.25
Frame Relay
serial transmission
LAPD
NCP
11. Designed to allow the simultaneous use of multiple Network layer protocols
data terminal equipment (DTE)
PAP and CHAP
HDLC
Network control Protocol (NCP)
12. Physical layer international standard for serial communication
Frame Relay
EIA/TIA-232-C - V.24 - V.35 - and ISDN
Encapsulation ppp
Link Control Protocol (LCP)
13. Equipment that's owned by the subscriber and located on the subscriber's premises
Point-to-Point Protocol (PPP)
Customer premises equipment (CPE)
High-Level Data Link Control (HDLC) protocol
HDLC - Frame Relay - PPP
14. Can encapsulate several layer 3 routed protocols and provide authentication - dynamic addressing - and callback
LAPD
Demarcation point
Point-to-Point Protocol (PPP)
Network layer protocol phase
15. Derived from Synchronous Data Link Control (SDLC); created by IBM as a Data Link connection protocol; very little overhead compared to LAPB; The HDLC header carries no identification of the type of protocol being carried inside the HDLC encapsulation
Link Control Protocol (LCP)
High-Level Data Link Control (HDLC) protocol
High-Level Data Link Control (HDLC)
High-Level Data Link Control (HDLC) protocol
16. Write the command to see the encapsulation method on serial 0 of a Cisco router
Network control Protocol (NCP)
Link Access Procedure - Balanced (LAPB)
Show interface serial 0
Point-to-Point Protocol (PPP)
17. Method for encapsulating datagrams over serial links
High-Level Data Link Control (HDLC)
Local loop
Link Access Procedure - D-Channel (LAPD)
Authentication phase
18. A point-to-point connection or dedicated connection; a pre-established WAN communications path from the CPE through the DCE switch to the CPE of the remote site - allowing DTE networks to communicate at any time with no setup procedures before transm
Leased lines
Link Access Procedure - Balanced (LAPB)
EIA/TIA-232-C - V.24 - V.35 - and ISDN
Point-to-Point Protocol (PPP)
19. One bit at a time over a single channel
LAPD
Link establishment phase
serial transmission
High-Level Data Link Control (HDLC) protocol
20. Which protocol in PPP is used to identify the routed protocols?
Frame Relay
NCP
Challenge Handshake Authentication Protocol (CHAP)
Point-to-Point Protocol (PPP)
21. Which are considered WAN connection types? (Choose three.)
Link Access Procedure - Balanced (LAPB)
Packet Switching - Circuit Switching - Leased Lines
Wide Area Network (WAN)
HDLC
22. HDLC stands for what?
High-Level Data Link Control (HDLC) protocol
High-Level Data Link Control
High-Level Data Link Control (HDLC)
Point-to-Point Protocol (PPP)
23. Which of that following is a packet-switching encapsulation?
Packet switching
HDLC
Frame Relay
Wide Area Network
24. Data Link layer protocol that can be used over either asynchronous serial (dial-up) or synchronous serial (ISDN) media
Customer premises equipment (CPE)
Point-to-Point Protocol (PPP)
Challenge Handshake Authentication Protocol (CHAP)
HDLC
25. What is the reason why the serial link between the Corp router and the Remote router will not come up?
HDLC - Frame Relay - PPP
Link Access Procedure - Balanced (LAPB)
High-Level Data Link Control (HDLC) protocol
The layer 2 frame types are not compatible
26. Network Control Protocol (NCP) is used to allow multiple Network layer protocols (routed protocols) to be used on a point-to-point connection
Wide Area Network
Network layer protocol phase
Point-to-Point Protocol (PPP)
High-Level Data Link Control (HDLC) protocol
27. Which PPP protocol provides link establishment?
Serial
Integrated Services Digital Network (ISDN)
LCP
Frame Relay
28. Uses cells instead of packets that are a fixed 53 bytes long; can use isochronous clocking (external clocking) to help the data move faster; provides simultaneous transmission of voice - video - and data
data terminal equipment (DTE)
High-Level Data Link Control (HDLC)
Wide Area Network
Asynchronous Transfer Mode (ATM)
29. Protocol stack is specified at the Physical and Data Link layers only
Show interface serial 0
Packet Switching - Circuit Switching - Leased Lines
Point-to-Point Protocol (PPP)
The layer 2 frame types are not compatible
30. Write the commands to configure a username of todd and password of cisco that is used on a Cisco router
Link establishment - Authentication phases (optional) - Network layer protocol phase
Encapsulation ppp
Username todd password cisco
Network control Protocol (NCP)
31. This point connects the customers to the provider's switching network
data terminal equipment (DTE)
Show interface
Central office (CO) or point of presence (POP)
Packet switching
32. A set of digital services that transmit voice and data over existing phone lines
Encapsulation ppp
CSU/DSU
Integrated Services Digital Network (ISDN)
It is Cisco proprietary
33. Uses dial-up modems or ISDN and is used for low-bandwidth data transfers; No data can transfer before an end-to-end connection is established
High-Level Data Link Control (HDLC) protocol
Packet Switching - Circuit Switching - Leased Lines
Circuit switching
Point-to-Point Protocol (PPP)
34. Proprietary
Packet switching
NCP
High-Level Data Link Control (HDLC) protocol
High-Level Data Link Control
35. Which type of port on a router is used for a T1?
Point-to-Point Protocol (PPP)
High-Level Data Link Control
Point-to-Point Protocol (PPP)
Serial
36. Uses the LCP (Link Control Protocol) to build and maintain data link connections
Point-to-Point Protocol (PPP)
Frame Relay
PPP - HDLC - Frame Relay
Wide Area Network (WAN)
37. What is a good command to verify your serial interface on a router?
Show interface
Toll network
Point-to-Point Protocol (PPP)
Challenge Handshake Authentication Protocol (CHAP)
38. Which of the following protocols are used with ISDN as an out-of-band protocol?
data terminal equipment (DTE)
LAPD
Link Control Protocol (LCP)
Password Authentication Protocol (PAP)
39. To transport layer 3 packets across a Data Link layer point-to-point link
Serial
The layer 2 frame types are not compatible
Asynchronous Transfer Mode (ATM)
Point-to-Point Protocol (PPP)
40. Nonproprietary
Frame Relay
Point-to-Point Protocol (PPP)
DCE network
Network control Protocol (NCP)
41. If you have a T1 - what must you connect from your router to a demarc?
Network layer protocol phase
High-Level Data Link Control (HDLC)
CSU/DSU
LCP
42. The Acme Corporation is implementing dial-up services to enable remote-office employees to connect to the local network. The company uses multiple routed protocols - needs authentication of users connecting to the network - and - since some calls wil
Link establishment phase
PPP
The layer 2 frame types are not compatible
High-Level Data Link Control (HDLC) protocol
43. Bit-oriented Data Link layer protocol
Serial
data terminal equipment (DTE)
Username todd password cisco
High-Level Data Link Control (HDLC) protocol
44. Which is true regarding HDLC?
It is Cisco proprietary
High-Level Data Link Control (HDLC)
Point-to-Point Protocol (PPP)
Central office (CO) or point of presence (POP)
45. Used with ISDN at the Data Link layer (layer 2) as a protocol for the D (signaling) channel
The layer 2 frame types are not compatible
Encapsulation ppp
High-Level Data Link Control (HDLC) protocol
Link Access Procedure - D-Channel (LAPD)
46. When a router is connected to a Frame Relay WAN link using a serial DTE interface - how is the clock rate determined?
HDLC - Frame Relay - PPP
Supplied by the CSU/DSU
Frame Relay
Password Authentication Protocol (PAP)
47. Which Data Link encapsulation can be used if you have one free serial interface and many remote offices to connect?
Show interface serial 0
Point-to-Point Protocol (PPP)
High-Level Data Link Control
Frame Relay
48. When PPP connections are started - the links go through three phases of session establishment. What are the three phases?
Integrated Services Digital Network (ISDN)
Link establishment - Authentication phases (optional) - Network layer protocol phase
PPP - HDLC - Frame Relay
HDLC - PPP - and Frame Relay
49. Allows you to share bandwidth with other companies to save money; a network that's designed to look like a leased line yet charges you (and costs) more like circuit switching; data transfers are bursty in nature; Frame Relay and X.25
Packet Switching - Circuit Switching - Leased Lines
Packet switching
Username todd password cisco
Point-to-Point Protocol (PPP)
50. Specifies an encapsulation method for data on synchronous serial data links using frame characters and checksums
Packet Switching - Circuit Switching - Leased Lines
High-Level Data Link Control (HDLC) protocol
Point-to-Point Protocol (PPP)
Local loop