Huawei H12 821 Hcip Datacom Core Technology V1 0 Practice Test - Set 1

Test your knowledge with this Huawei H12 821 Hcip Datacom Core Technology V1 0 mock exam. Get real-world IT questions and prepare for certification success.

H12-821: Huawei HCIP-Datacom-Core Technology V1.0 - Exam Information

Exam Information

Exam Code

Huawei H12 821 Hcip Datacom Core Technology V1 0

Exam Title

H12-821: Huawei HCIP-Datacom-Core Technology V1.0

Vendor

Huawei

Difficulty

Intermediate

Duration

120 Minutes

Question Format

Multiple Choice

Last Updated

March 21, 2025

This exam covers advanced networking concepts, including network design, routing, switching, and troubleshooting in Huawei Datacom.

Practice Test

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1. Which routing protocol is used for large-scale enterprise networks?

OSPF
RIP
EIGRP
STP

2. Which protocol provides secure remote access to network devices?

SSH
Telnet
FTP
HTTP

3. Which layer of the OSI model is responsible for packet forwarding?

Network
Transport
Data Link
Session

4. What is the function of VLANs in a network?

Segmenting broadcast domains
Increasing bandwidth
Encrypting traffic
Routing packets

5. Which command displays the routing table on a Huawei router?

display ip routing-table
show route
display route
ip route

6. Which technology prevents loops in Ethernet networks?

STP
OSPF
BGP
VLAN

7. Which address type is used in IPv6 for local communication?

Link-local
Global unicast
Multicast
Anycast

8. Which command is used to enable OSPF on a Huawei router?

ospf enable
ip ospf
router ospf
display ospf

9. Which protocol is responsible for translating domain names to IP addresses?

DNS
DHCP
NAT
ARP

10. Which QoS technique prioritizes critical traffic?

Traffic classification
Link aggregation
Routing tables
VLAN trunking

11. What is the purpose of NAT in networking?

Translate private IPs to public IPs
Encrypt traffic
Route packets
Manage VLANs

12. Which protocol is used to synchronize time across devices?

NTP
SNMP
BGP
ARP

13. Which type of address is used to identify a single network device?

Unicast
Multicast
Broadcast
Anycast

14. Which command saves the current configuration on a Huawei router?

save
write memory
copy run start
commit

15. Which protocol dynamically assigns IP addresses?

DHCP
DNS
NAT
ICMP

16. Which technology improves network redundancy?

VRRP
NAT
ARP
QoS

17. Which protocol is used for neighbor discovery in IPv6?

NDP
ARP
ICMP
RIP

18. Which layer of the OSI model handles error detection?

Data Link
Transport
Network
Physical

19. Which command is used to restart a Huawei router?

reboot
shutdown
restart
reload

20. Which protocol ensures reliable data delivery?

TCP
UDP
IP
ICMP

21. Which BGP attribute is used to prevent routing loops?

AS_PATH
LOCAL_PREF
MED
ORIGIN

22. What is the default OSPF hello timer on broadcast networks?

10 seconds
30 seconds
5 seconds
60 seconds

23. Which command displays detailed OSPF interface information?

display ospf interface
show ip ospf
display ospf brief
show ospf neighbors

24. What is the purpose of VRF in MPLS networks?

To create multiple routing instances
To encrypt traffic
To compress packets
To manage QoS

25. Which protocol does VRRP use for master election?

Multicast (224.0.0.18)
Unicast
Broadcast
Anycast

26. What is the default BGP keepalive timer?

60 seconds
30 seconds
10 seconds
180 seconds

27. Which command shows ECMP routes on Huawei devices?

display ip routing-table multipath
show ecmp routes
display multipath
show load-balance

28. What is the primary function of PIM in multicast?

To build multicast distribution trees
To encrypt multicast traffic
To compress video streams
To manage QoS

29. Which LACP mode actively negotiates aggregation?

Active
Passive
On
Auto

30. What is the purpose of BGP communities?

To tag routes for policy control
To encrypt BGP sessions
To compress routing tables
To authenticate peers

31. Which command displays detailed BGP neighbor information?

display bgp peer
show bgp neighbors
display bgp summary
show ip bgp

32. What is the default STP priority on Huawei switches?

32768
0
4096
8192

33. Which MPLS label is reserved for explicit NULL?

0
1
2
3

34. What is the purpose of PBR?

To override normal routing decisions
To encrypt specific traffic
To compress routing tables
To authenticate users

35. Which command shows interface statistics on Huawei devices?

display interface
show interfaces
display port stats
show counters

36. What is the function of TTL in MPLS?

To prevent infinite loops
To encrypt labels
To compress packets
To manage QoS

37. Which BGP state indicates active TCP connection?

Established
Idle
Connect
Active

38. What is the purpose of URPF?

To prevent IP spoofing
To encrypt traffic
To compress routing tables
To authenticate BGP peers

39. Which command enables LLDP globally on Huawei devices?

lldp enable
enable lldp
set lldp on
lldp run

40. What is the default VRRP priority?

100
0
255
50

41. Which protocol number does OSPF use?

89
88
6
17

42. What is the purpose of BFD?

Fast failure detection
Route filtering
Traffic encryption
QoS management

43. Which command shows MAC address table on Huawei switches?

display mac-address
show mac table
display arp
show cam

44. What is the default OSPF cost for 10Gbps interfaces?

2
1
10
100

45. Which MPLS component performs label switching?

LSR
LDP
LER
BGP

The Huawei H12 821 Hcip Datacom Core Technology V1 0 certification is a globally recognized credential for IT professionals. This practice test helps you prepare by covering key topics like hardware, networking, troubleshooting, and security.

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