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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. Which of that following is a packet-switching encapsulation?
Authentication phase
Username todd password cisco
Frame Relay
Leased lines
2. 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
Asynchronous Transfer Mode (ATM)
Network control Protocol (NCP)
High-Level Data Link Control (HDLC) protocol
Network control Protocol (NCP)
3. Which of the following encapsulations was considered an upgrade from x.25?
Packet Switching - Circuit Switching - Leased Lines
Wide Area Network
Frame Relay
Serial
4. LCP packets are sent by each PPP device to configure and test the link
HDLC - LCP - NCP
Leased lines
Link Access Procedure - D-Channel (LAPD)
Link establishment phase
5. What is the reason why the serial link between the Corp router and the Remote router will not come up?
data terminal equipment (DTE)
NCP
PPP - HDLC - Frame Relay
The layer 2 frame types are not compatible
6. When PPP connections are started - the links go through three phases of session establishment. What are the three phases?
Link Control Protocol (LCP)
Link establishment - Authentication phases (optional) - Network layer protocol phase
Frame Relay
DCE network
7. The default encapsulation used by Cisco routers over synchronous serial links
Show interface
High-Level Data Link Control (HDLC) protocol
Frame Relay
Packet switching
8. A trunk line inside a WAN provider's network; a collection of switches and facilities owned by the ISP
Frame Relay
NCP
Wide Area Network (WAN)
Toll network
9. Can encapsulate several layer 3 routed protocols and provide authentication - dynamic addressing - and callback
High-Level Data Link Control (HDLC) protocol
Point-to-Point Protocol (PPP)
Frame Relay
Integrated Services Digital Network (ISDN)
10. What are common Data Link WAN encapsulations?
HDLC - PPP - and Frame Relay
Frame Relay
Link establishment - Authentication phases (optional) - Network layer protocol phase
DCE network
11. Physical layer international standard for serial communication
EIA/TIA-232-C - V.24 - V.35 - and ISDN
Frame Relay
LCP
Packet Switching - Circuit Switching - Leased Lines
12. Protocol stack is specified at the Physical and Data Link layers only
High-Level Data Link Control (HDLC) protocol
Wide Area Network
NCP
Point-to-Point Protocol (PPP)
13. How do you configure a serial interface to use PPP encapsulation?
Integrated Services Digital Network (ISDN)
Show interface
High-Level Data Link Control (HDLC)
Encapsulation ppp
14. Nonproprietary
PPP - HDLC - Frame Relay
Point-to-Point Protocol (PPP)
PAP and CHAP
Integrated Services Digital Network (ISDN)
15. 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
Serial
Toll network
Point-to-Point Protocol
Leased lines
16. What does PPP mean?
High-Level Data Link Control (HDLC) protocol
Point-to-Point Protocol (PPP)
Point-to-Point Protocol
Point-to-Point Protocol (PPP)
17. WAN stands for?
Wide Area Network
Link establishment phase
HDLC - PPP - and Frame Relay
Packet switching
18. To transport layer 3 packets across a Data Link layer point-to-point link
Authentication phase
Asynchronous Transfer Mode (ATM)
HDLC - PPP - and Frame Relay
Point-to-Point Protocol (PPP)
19. 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
PPP - HDLC - Frame Relay
Network layer protocol phase
Link Access Procedure - Balanced (LAPB)
Customer premises equipment (CPE)
20. Which protocol in PPP is used to identify the routed protocols?
Point-to-Point Protocol (PPP)
NCP
Username todd password cisco
LCP
21. Method for encapsulating datagrams over serial links
Point-to-Point Protocol (PPP)
High-Level Data Link Control (HDLC)
serial transmission
Leased lines
22. Connects the demarc to the closest switching office - called a central office
Frame Relay
Network layer protocol phase
High-Level Data Link Control (HDLC)
Local loop
23. Network Control Protocol (NCP) is used to allow multiple Network layer protocols (routed protocols) to be used on a point-to-point connection
Supplied by the CSU/DSU
HDLC - LCP - NCP
Point-to-Point Protocol (PPP)
PPP
24. Which are considered WAN connection types? (Choose three.)
Link establishment - Authentication phases (optional) - Network layer protocol phase
Password Authentication Protocol (PAP)
Toll network
Packet Switching - Circuit Switching - Leased Lines
25. What is the default serial encapsulation used on Cisco routers?
HDLC
Point-to-Point Protocol (PPP)
Network control Protocol (NCP)
Point-to-Point Protocol (PPP)
26. Specifies an encapsulation method for data on synchronous serial data links using frame characters and checksums
Link Access Procedure - D-Channel (LAPD)
serial transmission
Wide Area Network
High-Level Data Link Control (HDLC) protocol
27. Bit-oriented Data Link layer protocol
Point-to-Point Protocol (PPP)
High-Level Data Link Control (HDLC) protocol
PPP
Point-to-Point Protocol (PPP)
28. To connect two DTE networks together through a DCE network
Asynchronous Transfer Mode (ATM)
Point-to-Point Protocol (PPP)
Wide Area Network (WAN)
High-Level Data Link Control
29. Uses the LCP (Link Control Protocol) to build and maintain data link connections
DCE network
PPP - HDLC - Frame Relay
Frame Relay
Point-to-Point Protocol (PPP)
30. Proprietary
Point-to-Point Protocol (PPP)
High-Level Data Link Control (HDLC) protocol
NCP
Point-to-Point Protocol (PPP)
31. Equipment that's owned by the subscriber and located on the subscriber's premises
Customer premises equipment (CPE)
data terminal equipment (DTE)
High-Level Data Link Control (HDLC)
Circuit switching
32. Used with ISDN at the Data Link layer (layer 2) as a protocol for the D (signaling) channel
Wide Area Network (WAN)
Link Access Procedure - D-Channel (LAPD)
Network control Protocol (NCP)
Point-to-Point Protocol (PPP)
33. Serial interfaces by default; connect into data communication equipment (DCE)
CSU/DSU
data terminal equipment (DTE)
High-Level Data Link Control (HDLC)
Frame Relay
34. When a router is connected to a Frame Relay WAN link using a serial DTE interface - how is the clock rate determined?
High-Level Data Link Control (HDLC)
Supplied by the CSU/DSU
Point-to-Point Protocol (PPP)
Wide Area Network (WAN)
35. 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)
Frame Relay
Password Authentication Protocol (PAP)
DCE network
Challenge Handshake Authentication Protocol (CHAP)
36. The spot where the service provider's responsibility ends and the CPE begins
HDLC
Authentication phase
Demarcation point
Supplied by the CSU/DSU
37. HDLC stands for what?
Point-to-Point Protocol (PPP)
High-Level Data Link Control
Local loop
Frame Relay
38. Write the commands to configure s0 to PPP encapsulation
High-Level Data Link Control (HDLC) protocol
Frame Relay
Network layer protocol phase
Config t - interface serial 0 - encapsulation ppp
39. 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
High-Level Data Link Control (HDLC) protocol
Asynchronous Transfer Mode (ATM)
Packet switching
Frame Relay
40. A set of digital services that transmit voice and data over existing phone lines
Supplied by the CSU/DSU
Integrated Services Digital Network (ISDN)
Encapsulation ppp
Point-to-Point Protocol (PPP)
41. Designed to allow the simultaneous use of multiple Network layer protocols
Point-to-Point Protocol (PPP)
High-Level Data Link Control (HDLC) protocol
Config t - interface serial 0 - encapsulation ppp
Network control Protocol (NCP)
42. Which PPP protocol provides link establishment?
High-Level Data Link Control (HDLC) protocol
HDLC - Frame Relay - PPP
LCP
HDLC
43. If you had one serial interface on your router and needed to connect many remote locations - which Data Link encapsulation should you use?
HDLC
Frame Relay
High-Level Data Link Control (HDLC) protocol
Point-to-Point Protocol (PPP)
44. What is a good command to verify your serial interface on a router?
HDLC - Frame Relay - PPP
High-Level Data Link Control (HDLC) protocol
DCE network
Show interface
45. 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
Link Access Procedure - Balanced (LAPB)
Circuit switching
DCE network
46. 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
Username todd password cisco
High-Level Data Link Control (HDLC)
The layer 2 frame types are not compatible
Frame Relay
47. What are the PPP Data Link protocols?
Link Access Procedure - Balanced (LAPB)
HDLC
Network layer protocol phase
HDLC - LCP - NCP
48. 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
PAP and CHAP
Integrated Services Digital Network (ISDN)
PPP
Packet switching
49. No authentication
High-Level Data Link Control (HDLC)
High-Level Data Link Control (HDLC)
High-Level Data Link Control (HDLC) protocol
HDLC
50. Less secure; Passwords are sent in clear text
Password Authentication Protocol (PAP)
LCP
serial transmission
PAP and CHAP