Huawei HCIP-Datacom-Core Technology V1.0 - H12-821_V1.0 FREE EXAM DUMPS QUESTIONS & ANSWERS]

Question 1

SSH uses asymmetric encryption algorithms AES and DES to achieve data transmission security, and uses HMAC to ensure data integrity.

A. FALSE B. TRUE

Discussion 0

Correct Answer: B Vote an answer

Question 2

In an IPv4 address space, Class D addresses are used for multicast. Among Class D addresses, which of the following is the permanent group address range reserved for routing protocols?

A. 232.0.0.0 to 232.255.255.255 B. 224.0.1.0 to 231.255.255.255 C. 224.0.0.0 to 224.0.0.255 D. 239.0.0.0 to 239.255.255.255

Discussion 0

Correct Answer: C Vote an answer

Explanation: Only visible for FreeCram members. You can sign-up / login (it's free).

Question 3

R1, R2, R3, and R4 run IS-S. The DIS Priority of their interfaces is as shown in the figure. If the devices are started at the same time, () is elected as DIS.

Discussion 0

Correct Answer:

R4

Question 4

ACL can be divided into which of the following categories? (Multiple choice)

A. Layer 2 ACL B. Advanced ACLs C. User-defined ACL D. Basic ACLs

Discussion 0

Correct Answer: A,B,C,D Vote an answer

Question 5

Which of the following descriptions about URPF (Unicast Reverse Path Forwarding) is correct?

A. If you deploy URPF in loose mode, if you need to check the default route, you need to check whether the interface matches B. If strict mode URPF is deployed, as long as the packet can match the detailed route, the P address can be deemed legitimate and the packet can be forwarded. C. After deploying strict mode URPF, you can also deploy it at the same time to allow matching the default routing mode. D. If you deploy loose mode URPF, no detailed route matching is required by default.

Discussion 0

Correct Answer: C Vote an answer

Question 6

The comparison items of the master switch election in the stack include? (Multiple choice)

A. MAC address B. Running status C. Stack priority D. Stack ID

Discussion 0

Correct Answer: A,B,C Vote an answer

Question 7

Regarding the warning message "0SPF/2/IFAUTFAIL (OID) [1.3.6.1.2.1.14.16.2.6]:
Apacketisreceivedonanon-virtual
Interface from a muter whos eauthentication key
Or
authentication type conflicts with the local authentication key
Or
authentication type. (IflpAddress=[ipaddress]AddressLesslf=interflce-index] Processld=[process-id]Routerld=muter-id]PacketSrc=[source-ip-address] ConfigErrorType= (error-type) ] PacketType=[packettypel] InstanceName=[linstancename] ) " Which of the following description is wrong?

A. An error may be caused by a subnet mask mismatch B. It may be an error caused by a mismatch in the area code C. It may be caused by interface verification and coordination errors D. Errors that may be caused by the HELLO time interval

Discussion 0

Correct Answer: C Vote an answer

Question 8

On Huawei equipment, which of the following commands can realize the linkage between BFD and the static default route?

A. ip route-static 0.0.0.0 0.0.0.0 10.0.12.2 track session 1 B. ip route-static 0.0.0.0 0.0.0.0 10.0.12.2 bfd-session 1 C. ip route-static 0.0.0.0 0.0.0.0 10.0.12.2 track bfd-session 1 D. ip route-static 0.0.0.0 0.0.0.0 10.0.12.2 track 1

Discussion 0

Correct Answer: C Vote an answer

Question 9

SDN is a new type of network innovation architecture.
Which of the following descriptions about the value of SDN is correct? (Multiple choice)

A. Realize centralized management and simplify network management and operation and maintenance B. Realize rapid service deployment and shorten service launch time C. Realize automatic tuning and improve network utilization D. Shield technical details, reduce network complexity, and reduce operation and maintenance costs

Discussion 0

Correct Answer: A,B,C,D Vote an answer

Question 10

An enterprise administrator wants to configure single-hop BFD to implement fast detection of direct links.
Which of the following configurations are mandatory?

A. Enable BFD globally. B. Configure a multicast IP address for BFD. C. Configure the remote discriminator of a BFD session. D. Configure the local discriminator of a BFD session.

Discussion 0

Correct Answer: A,C,D Vote an answer

Explanation: Only visible for FreeCram members. You can sign-up / login (it's free).

Question 11

Drag and Drop Question
Huawei modular devices have multiple hardware modules that provide different functions. Match the following hardware modules with their functions.

Discussion 0

Correct Answer:

Explanation:
The hardware modules of Huawei modular devices and their functions are:
Main Processing Unit (MPU): Provides control and management planes for the entire system, responsible for protocol processing, system security, and software upgrades.
Switch Fabric Unit (SFU): Provides the data plane, enabling high-speed data switching between service modules.
Line Processing Unit (LPU): Manages data forwarding, offering various interfaces (optical and electrical) for data access.

Question 12

Which of the following descriptions about BGP route optimization is correct?

A. BGP compares the originality of routes strictly according to the sequence when selecting routes. If the optimal route can be selected through the previous attributes, the latter comparison cannot be judged. B. When BGP selects a route, if it cannot be optimized according to the conditions, it will automatically carry out load sharing C. When there are multiple effective routes in BGP, BGP Speaker only advertises the optimal route to the peer D. When BGP receives multiple routes to the same destination, it will select the optimal route according to the routing rules, and then deliver the optimal route to the IP routing table to guide data traffic forwarding

Discussion 0

Correct Answer: C Vote an answer

Question 13

Which type of TLV does IS-IS use to describe IP Interface Address?

A. 129 B. 132 C. 128 D. 131

Discussion 0

Correct Answer: B Vote an answer