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NEW QUESTION # 136
Regarding the BGP alliance, the following description is wrong? Radio
- A. The subas number of the federation, which by default is advertised to the BGP peer outside the federation
- B. The consortium divides an AS into sub-AS, and the alliance external AS still considers the consortium to be an AS
- C. Subsystems within a consortium can use private AS numbers. Huawei NE/AR routers, a consortium can be configured with up to 32 subsystems.
- D. Consortium can easily detect the routing loop within the AS because EBGP is running between the subAS
Answer: A
NEW QUESTION # 137
In order for routers at both ends of the IPv6 over lPv4 manual tunnel to exchange routing information, OSPV3 can be enabled on the tunnel, osPFv3 will be able to form a normal neighbor relationship, and the tunnel interface will be treated as a P2P link interface.
- A. FALSE
- B. TRUE
Answer: B
NEW QUESTION # 138
Huawei Open Programmability System (OPS) uses HTTP methods to access managed objects to manage network devices. To facilitate script compilation, Huawei OPS provides the Python script template. In the Python script template, what are the contents of the Content-type and Accept fields in the header of an HTTP request packet?
- A. text/json, text/xml
- B. text/xml, text/xml
- C. text/xml, text/json
- D. text/json, text/json
Answer: D
Explanation:
Huawei Open Programmability System (OPS) and HTTP Request Headers
Huawei OPS allows network automation and programmability through HTTP-based APIs. When using Python scripts to send HTTP requests to network devices, the request headers must specify the content format for data exchange.
# B. Content-Type: text/json, Accept: text/json (Correct Answer)
* Content-Type: text/json # Specifies that the request body contains JSON-formatted data.
* Accept: text/json # Specifies that the response should be in JSON format.
NEW QUESTION # 139
Which of the following are carried in an HTTP/1.1 response?
- A. Response body
- B. Status line
- C. Empty line
- D. Response header
Answer: A,B,C,D
Explanation:
Understanding HTTP/1.1 Response Structure
# What is an HTTP Response?
* The response is sent from the server to the client after processing an HTTP request.
* The structure follows a standardized format:
Elements of an HTTP/1.1 Response:
# A. Status Line # Contains protocol version, status code, and reason phrase.# B. Response Body # Contains HTML, JSON, XML, or other content.# C. Response Header # Provides metadata about the response (e.g., Content-Type, Server).# D. Empty Line # A blank line separates headers from the response body.
Example of an HTTP/1.1 Response:
HTTP/1.1 200 OK
Date: Sat, 08 Mar 2025 14:00:00 GMT
Server: Apache/2.4.41 (Ubuntu)
Content-Type: text/html; charset=UTF-8
<html>
<body>
<h1>Welcome to Huawei Datacom</h1>
</body>
</html>
Why is the Answer A, B, C, D?
# An HTTP response includes a status line, headers, an empty line, and a response body.
Real-World Application:
* Web Application Debugging: Helps developers analyze server responses.
* API Security: Validates response headers to prevent injection attacks.
# Reference: Huawei HCIE-Datacom Guide - HTTP Protocol and Response Headers
NEW QUESTION # 140
Which of the following are single-packet attacks?
- A. Scan Probe Attack
- B. Malformed Message Attack
- C. Special control message attacks
- D. DDos Attack
Answer: A,B,C
NEW QUESTION # 141
Which of the following commands is used to adjust the cost of an IS-IS interface?
- A. isis timer hello
- B. isis circuit-level
- C. isis cost
- D. isis circuit-type
Answer: C
Explanation:
Comprehensive and Detailed Explanation:
* The IS-IS metric (cost) determines the shortest path selection.
* The isis cost command is used to manually set the cost of an IS-IS interface.
Command Breakdown:
# isis cost <value> - Adjusts the cost of an interface in the IS-IS routing protocol.# Lower cost means higher priority in route selection.
Why Are Other Options Incorrect?
# isis circuit-type - Sets the circuit type (L1, L2, L1/L2) but does not change cost.# isis timer hello - Adjusts hello interval timing, not path cost.# isis circuit-level - Defines interface level (L1, L2) but does not impact cost.
Thus, the correct answer is C.
# Reference: Huawei HCIE Datacom - IS-IS Path Cost Adjustment
NEW QUESTION # 142
The following description of the RD attribute filter for BGP is correct?
- A. Multiple rules are matched in the order in which they are configured.
- B. There is always an "or" relationship between the rules configured by RD-filter.
- C. If RD-filter is configured, but the routed RD is not matched with any of the RDs defined in the rule, the default match result is permit.
- D. If RD-filter is not configured, but the RD-filter is referenced for filtering, the matching result is deny.
Answer: A,B
NEW QUESTION # 143
What kind of scenario can use AS-path-filter?( Multiple select).
- A. The apply clause in Route policy
- B. The if-match clause in Route-policy
- C. Filter routes sent to BGP neighbors based on the AS PATH attribute that the route carries. For example, the command peer x.x.x.x as path-filter export
- D. A Filters routes received from BGP neighbors based on the AS PATH attribute carried by the route, such as the command peer X.x.x.x as path-filter import
Answer: B,C,D
NEW QUESTION # 144
If the Interface Sticky MAC function is enabled, what is the number of MAC addresses that the interface learns by default?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: C
NEW QUESTION # 145
The following statement about the alliance is correct?( Single choice questions).
- A. The consortium divides an AS into sub-AS, and the alliance external AS still considers the consortium to be an AS
- B. Consortium can easily detect the routing loop within the AS because EBGP is running between the subAS.
- C. Subsystems within a consortium can use private AS numbers. Huawei NE/AR routers, a consortium can be configured with up to 32 subsystems
- D. The subas number of the consortium, which by default notifies BGP peers outside the consortium
Answer: D
NEW QUESTION # 146
An engineer often remotely logs in to the device to check the device status. The engineer can use the Python Paramiko and telnetlib libraries to implement automatic remote login through Python scripts. The remote login implemented using telnetlib is more secure.
- A. FALSE
- B. TRUE
Answer: A
Explanation:
Comparison Between Paramiko (SSH) and Telnetlib (Telnet)
#Paramiko (SSH) is more secure than Telnetlib (Telnet).
SSH (Secure Shell) encrypts login credentials and session datausing encryption protocols likeAES and RSA.
Telnet transmits data in plaintext, making it vulnerable to eavesdropping and man-in-the-middle attacks.
#Why is Telnet Insecure?
No encryption# Credentials (username/password) are sent in plaintext.
Easily interceptedby attackers using packet sniffers (e.g., Wireshark).
Correct Method for Secure Remote Login in Python:
UseParamiko for SSH-based secure automation.
Example of logging in withParamiko (SSH)in Python:
import paramiko
ssh = paramiko.SSHClient()
ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())
ssh.connect("192.168.1.1", username="admin", password="password")
stdin, stdout, stderr = ssh.exec_command("display version")
print(stdout.read().decode())
ssh.close()
Reference from Huawei HCIE-Datacom Documentation:
Huawei Security Best Practices - Avoiding Telnet and Using SSH for Secure Access HCIE-Datacom Training Material - Network Automation with Python (Paramiko & Telnetlib)
NEW QUESTION # 147
In the LDP session establishment process, the initiator sends an Initialization message for parameter negotiation. Which message will be sent by the responder if it does not accept negotiation parameters?
- A. Initialization Message
- B. Error Notification Message
- C. Hello Message
- D. Keepalive Message
Answer: B
Explanation:
Comprehensive and Detailed In-Depth Explanation:
In the Label Distribution Protocol (LDP) session establishment process, theInitialization messageis sent by the initiator to propose parameters for the session. If the responder finds that the proposed parameters are not acceptable, it responds with anError Notification Message. This message indicates that the session could not be established due to incompatible or incorrect parameters.
TheError Notification Messagetypically includes details about why the session could not be established, such as parameter mismatch or unsupported features. If the parameters are acceptable, the responder would instead reply with aKeepalive Messageto maintain the session.
NEW QUESTION # 148
The following description of the attributes of BGP is correct? Radio
- A. Local_Pref is valid only between EBGP peers and is not advertised to third-party AS
- B. When a BGP Speaker publishes a route learned from an EBCP peer to an IBGP peer, it does not change the next hop attribute of that routing information.
- C. The AS number of the adjacent AS, ranked to the far right of the list of AS_Path in the BGP route entry.
- D. A route can have only one community attribute value.
Answer: B
NEW QUESTION # 149
Regarding BGP route filtering, the following description is wrong?
- A. In the same node of Route-Policy, multiple if-match clauses for different attributes are "or" relationships.
- B. When a route to a BGP peer is received, a routing policy is enforced to filter unwanted BGP routes that are not added to the local BGP routing table.
- C. The filtering relationship between Route-Policy's noodes is "or." ", that is, as long as a node filter is passed, it can pass through the Route-policyo
- D. For routes published locally, configure a routing policy that takes effect before the route is added to the BGP route table.
Answer: A
NEW QUESTION # 150
ISIS does not send CSNP packets under the P2P network type during the neighbor establishment process.
- A. True
- B. False
Answer: B
NEW QUESTION # 151
When configuring a static VXLAN tunnel, you need to manually configure the _____, VTEP IP address, and ingress replication list. (Enter only uppercase letters.)
Answer:
Explanation:
VNIInstatic
Explanation:
VXLAN tunnel configuration, you donot use a control planelike BGP EVPN. Instead, youmanually configureall necessary forwarding parameters, including:VNI (VXLAN Network Identifier): Identifies the VXLAN segment.VTEP IP Address: The remote tunnel endpoint.Ingress Replication List: Required for multicast emulation (flooding/BUM traffic) in the absence of a multicast control plane.Whenconfiguring statically, theVNIis essential to map Layer 2/3 services to the correct VXLAN segment.Thus, the correct word to complete the sentence is:VNICorrect answer: VNI
NEW QUESTION # 152
VrRP priority is not configured as O, devices that issue VRRP priority of 0 stop participating in the VRRP backup group, notifying the backup device to become a laster device as soon as possible without having to wait until the Master_Down_Interval timer times out
- A. True
- B. False
Answer: A
NEW QUESTION # 153
Regarding the Stub region in the OSPF protocol, the following statement is correct.
- A. Virtual connections cannot traverse the Stub region
- B. ASBR cannot exist in the Stub zone
- C. Type7 LSA injection is not allowed in the Stub zone
- D. Backbone zones cannot be configured as Stub zones
Answer: A,B,C,D
NEW QUESTION # 154
Regarding the cross-domain VPN-OptionB scenario, what is the following description incorrect?
- A. scheme is not limited by the number of interconnection links between ASBRs
- B. In the process of packet forwarding, the private network LSP of the VPN should be exchanged once on the two ASBRs An EBGP neighbor relationship.
- C. Cross-domain VPN An Option
- D. The outer layer label is exchanged between two ASBRs to VPNv4 routes.
Answer: D
NEW QUESTION # 155
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