H12-891

H12-891 practice questions, page 16 of 22, with answer review and explanations.

Question 76

Which of the following is a data encryption algorithm?

  1. MD5
  2. SHA1
  3. SHA-256
  4. DES

Question 77

When a client invokes the iMaster NCE-Campus RESTful API, it sends an HTTP request. The server then returns the status code 401. Which of the following errors has occurred?

  1. Access denied.
  2. Unauthorized.
  3. The requested resource does not exist.
  4. The service is unavailable.

Question 78

OSPF is deployed on a campus network to implement network interconnection. The LSDB of R2 is shown in the figure. What can be determined from the LSDB? (Choose all that apply.)

  1. Area 1 is an NSSA
  2. Area 1 does not have Type 3 LSAs. The possible cause is that R2 filters Type 3 LSAs in the outbound direction of area 1.
  3. R2 advertises the default route in the OSPF process.
  4. R2 translates Type 7 default route into Type 5 default route.

Question 79

Which of the following causes may result in an IS-IS neighbor relationship fault? (Choose all that apply.)

  1. The devices on two ends of a link have the same system ID.
  2. The devices on two ends of a link have inconsistent IS-IS levels.
  3. When an IS-IS Level-1 neighbor relationship is established, the devices on two ends of a link have inconsistent area addresses.
  4. The IP addresses of interfaces on two ends of a link are on different network segments.

Question 80

The naming of SRv6 instructions complies with certain rules. You can quickly determine the function of an instruction based on the instruction name. Which of the following statements about the keywords in SRv6 instruction names are correct? (Choose all that apply.)

  1. T: searches a specified routing table to forward packets.
  2. V: searches a VPN instance routing table to forward packets.
  3. M: searches a Layer 2 forwarding table for unicast forwarding.
  4. X: forwards packets through one or a group of specified Layer 3 interfaces.