Pass the Huawei HCIP-Security H12-725_V4.0 Questions and answers with ExamsMirror

Comprehensive and Detailed Explanation:

iMaster NCE-Campus does not have a built-in LDAP server.Instead, it integrates with external authentication servers such as:

RADIUS servers

Active Directory (AD) with LDAP

HWTACACS servers

Why is this statement false?

iMaster NCE-Campus can connect to LDAP but does not act as an LDAP server itself.

HCIP-Security References:

Huawei HCIP-Security Guide → iMaster NCE-Campus Authentication Integration

Comprehensive and Detailed Explanation:

Regular expressions (regex) are used in data filtering to detect patterns in traffic.

*b.d Explanation:

b→ The word must start with 'b'.

.* → Matches any number of characters (wildcard).

d→ The word must end with 'd'.

Testing the given words:

A. abroad (✔matches)→ Starts with "b" but does not end with "d".

B. beside (✔matches)→ Starts with "b" but does not end with "d".

C. boring (✔allowed)→ Doesnotstart with "b" and end with "d" (safe to post).

D. bad (❌blocked)→ Starts with "b" and ends with "d" (matches the regex).

Why is C correct?

"boring" does not match the regex pattern, so it is not blocked.

HCIP-Security References:

Huawei HCIP-Security Guide → Regular Expressions in Data Filtering

Understanding the Differences Between HWTACACS and RADIUS:

HWTACACS(Huawei Terminal Access Controller Access-Control System) is aHuawei-enhanced version of TACACS+used forAAA (Authentication, Authorization, and Accounting).

RADIUS (Remote Authentication Dial-In User Service)is also an AAA protocol but is mainly designed fornetwork access authentication, such asVPNs and wireless authentication.

Why is Option B Correct?

HWTACACS supports per-command authorization, meaning administrators canassign different command privileges to different users.

For example, ajunior network engineer may be allowed to view configurations but not modify them, while asenior engineer has full access.

RADIUS does not support granular command authorization, as it primarily controlsnetwork accessrather than device management.

Comprehensive and Detailed Explanation:

Huawei's Anti-DDoS solution has three core components:

A. Detecting center→ Monitors and detects attack traffic.

B. Management center→ Controls and configures security policies.

D. Cleaning center→ Mitigates attack traffic and allows normal traffic.

Why is C incorrect?

"Zone" is not a specific Huawei Anti-DDoS component.

HCIP-Security References:

Huawei HCIP-Security Guide → Anti-DDoS System Components

Comprehensive and Detailed Explanation:

SYN scanning is a stealthy TCP scanning technique used by attackers to detect open ports.

How SYN scanning works:

The attacker sends aSYN packetto a target port.

If the port isopen, the target responds with aSYN-ACK.

Instead of completing the handshake with anACK, the attacker sends anRST (reset) packet, leaving the connection half-open.

Why is this statement false?

SYN scanning does NOT establish a full connection (three-way handshake).

It may not always be recorded in system logs, depending on firewall settings.

HCIP-Security References:

Huawei HCIP-Security Guide → TCP SYN Scanning & Intrusion Detection

1. Virtual System → Services and routes can be isolated.

A virtual system (VS)in Huawei firewalls is afully isolated security instancewithin a single physical firewall.

Each virtual system hasseparate services, routing tables, policies, and security rules, ensuring full isolation between different users or tenants.

2. VPN Instance → Only route isolation can be implemented.

AVPN instance (VRF - Virtual Routing and Forwarding)providesroute isolationfor different customer networks butdoes not isolate services or security policies.

This is typically used inMPLS VPN deploymentswhere different customers share the same physical device but need isolated routing tables.

3. VPN Instance → VPN instances are automatically generated.

In someMPLS VPNorSDN-managed networks, VPN instances can beautomatically createdwhen customer configurations are pushed via controllers.

Dynamic routing protocols (e.g., BGP/MPLS VPN) can automatically generateVRF instancesbased on network policies.

4. Virtual System → An instance needs to be manually created.

Unlike VPN instances,virtual systems must be manually createdby an administrator on the firewall.

Each virtual system functions as acompletely independent firewall, requiring manual configuration ofinterfaces, policies, and routing settings.

Intrusion Prevention Systems (IPS) in firewalls follow amulti-step processto detect and mitigate threats. The steps occur in a logical sequence:

1️⃣Step 1: Identifies and Parses Application-Layer Protocols

The firewall firstidentifies the protocol being used(e.g., HTTP, FTP, DNS, SMTP).

Parsing the protocol helps the IPS engineunderstand how the data is structuredand what types of attacks might be embedded.

This step is crucial for detectingprotocol-based attackslike SQL injection or cross-site scripting (XSS).

2️⃣Step 2: Reassembles IP Fragments and TCP Flows

Attackers oftensplit malicious payloads across multiple packetsto evade detection.

The firewallreassembles fragmented packets and TCP flowsto reconstruct the full data stream.

This step is critical for detectingevasion techniques such as fragmented attacks or out-of-order packet attacks.

3️⃣Step 3: Performs Signature Matching

Once the full data stream is reassembled, the IPScompares it against known attack signatures.

Signature matching helps detect:

Malware patterns(e.g., botnets, Trojans).

Exploits targeting vulnerabilitiesin software and operating systems.

Firewalls usepredefined signature databasesthat are regularly updated.

4️⃣Step 4: Performs the Response Action Based on the IPS Profile

If an attack is detected, the firewall takes anaction based on the IPS policy:

Block the traffic(drop malicious packets).

Alert the administrator(generate logs and alerts).

Rate-limit traffic(slow down potential attack sources).

Theresponse mechanism is customizablebased on security requirements.

Comprehensive and Detailed Explanation:

CVSS (Common Vulnerability Scoring System)is used toevaluate the severity of security vulnerabilities.

It consists of three metric groups:

A. Temporal→ Measures how the vulnerability changes over time.

B. Base→ Measures theinherent severityof the vulnerability.

C. Environmental→ Measures the impact based on the user's specific environment.

Why is D incorrect?

"Spatial" is not a part of the CVSS scoring system.

HCIP-Security References:

Huawei HCIP-Security Guide → CVSS and Risk Scoring