cisco 350-021 online test
CCIE SP Cable Qualification Exam
What students need to know about the 350-021 exam
- Total 399 Questions & Answers
Question 1
Within OSPF, what functionality best defines the use of a 'stub' area?
- A. It appears only on remote areas to provide connectivity to the OSPF backbone.
- B. It is used to inject the default route for OSPF.
- C. It uses the no-summary keyword to explicitly block external routes, defines the nontransit area, and uses the default route to reach external networks.
- D. It is a non-transit area that does not allow flooding of external networks and uses the default route to reach external networks.
Answer:
D
Question 2
When configuring the smart-relay feature on the CMTS, what command allows you to populate the GIADDR with multiple
secondary addresses?
- A. ip dhcp relay information option
- B. cable dhcp-giaddr policy
- C. cable relay-information-option
- D. cable relay-agent-option
- E. ip dhcp relay information policy
Answer:
B
Question 3
In an MPEG II transport stream, what describes the correct relationship between PSI tables?
- A. The PAT contains BAT elements for each program. Within each BAT are pointers to a PMT. The PMT points to specific program elements. The NIT always resides on PID 4096 and therefore doesn't require a pointer.
- B. The PAT contains pointers to BATs. BATs contains descriptors for each program element and a pointer to the associated NIT.
- C. The PAT contains pointers to program elements within each PMT. NIT's are described separately and are not associated with the PMT.
- D. The PAT contains pointers to programs and private tables, such as CAT's and NITs. The PMT contains pointers to each program element. The BAT associates program elements within a service.
- E. The PAT contains pointers to PMTs for each program, private tables, and other tables such NITs. PMTs contains pointers to each element with a program. BATs are not associated with the PMT.
Answer:
E
Question 4
Customers green and blue must communicate with each other. Which condition is required?
- A. Customer Blue and Customer Green must use BGP for routing to the Internet.
- B. Customer Blue and Customer Green must use unique addresses in their corporate networks.
- C. All Service Provider routers must use BGP.
- D. The Service Provider must provide BGP Peering to another Service Provider.
Answer:
B
Question 5
Host D sends a frame to Host B at the same time that Host B sends a frame to Host
D. Bridging is enabled on Router 1, and the two frames collide into each other. Select the best explanation of why Host B will
or will not receive the original frame from Host D:
- A. Host B will receive the frame, since Hosts B & D are in the same VLAN.
- B. Host B will receive the frame, since Hosts B and D are in the same routing domain.
- C. Host B will not receive the frame, since Hosts B and D are in the same collision domain.
- D. Bridging is enabled on Router 1, and the two frames collide into each other. Select the best explanation of why Host B will or will not receive the original frame from Host D: Host B will not receive the frame, since Hosts B and D are in different broadcast domains.
- E. Host B will receive the frame, since Hosts B and D are in the same bridging domain.
Answer:
C
Question 6
The "show controllers cable x/y upstreram x" command does not detect impulse noise because:
- A. It does measure impulse noise but it is an estimate.
- B. Ingress is measured in microseconds and can't be detected.
- C. Ingress is measured in milliseconds and can't be detected.
- D. Impulse is measured in microseconds and can't be detected.
- E. Impulse noise is detected but based on an average.
Answer:
D
Question 7
What effect will this configuration command have?
line vty 0 4
no password vtypassword
- A. All telnet connections to the router will be denied.
- B. Only one telnet connection at the router will be allowed at a time.
- C. Virtual terminal sessions will not be able to enter enable mode.
- D. Virtual terminal sessions will not be asked a user-level password.
- E. It will have no effect.
Answer:
A
Question 8
Host D sends a frame to Host B at the same time that Host B sends a frame to Host
D. Bridging is enabled on Router 1, and the two frames collide into each other. Select the best explanation of why Host B will
or will not receive the original frame from Host D:
- A. Host B will receive the frame, since Hosts B & D are in the same VLAN.
- B. Host B will receive the frame, since Hosts B and D are in the same routing domain.
- C. Host B will not receive the frame, since Hosts B and D are in the same collision domain.
- D. Bridging is enabled on Router 1, and the two frames collide into each other. Select the best explanation of why Host B will or will not receive the original frame from Host D: Host B will not receive the frame, since Hosts B and D are in different broadcast domains.
- E. Host B will receive the frame, since Hosts B and D are in the same bridging domain.
Answer:
C
Question 9
What command on the Ubr7246 can help find the possibility of a problem with ingress noise on cable x/y upstream? (multiple
answer)
- A. Show controller cable x/y upstream z
- B. Debug cable mac log verbose
- C. Debug cable modulation
- D. Show cable hop
- E. Show int cable x/y upstream z
Answer:
A D E
Question 10
Given an address of 10.1.1.1 with a subnet mask of 255.255.255.224, how many hosts can be addressed in this subnet?
- A. 16
- B. 15
- C. 30
- D. 31
- E. 63
Answer:
C