350-701 Exam Dumps - Cisco CCNP Security Questions and Answers

Certificate authorities (CAs) are responsible for issuing, renewing, revoking, and publishing digital certificates. They also maintain a certificate revocation list (CRL), which is a database of revoked certificates that can be checked by relying parties to verify the validity of a certificate. Registration authorities (RAs) are entities that assist CAs with the verification of user identities and enrollment requests. They do not issue certificates themselves, nor do they have access to the CRL. Therefore, CRL publishing is a function that is performed by CAs but is a limitation of RAs. References :=

Some possible references are:

Implementing and Operating Cisco Security Core Technologies (SCOR) v1.0, Module 4: Secure Connectivity, Lesson 4.1: VPN Fundamentals, Topic 4.1.1: Public Key Infrastructure (PKI)

Easy guide to SSL certificate authorities, Namecheap

How exactly are registration authorities related to certificate authorities?, Information Security Stack Exchange

The Cisco ASA must support TLS proxy for encrypted Cisco Unified Communications traffic. This means that the ASA acts as a proxy between the Cisco IP Phone and the Cisco Unified Communications Manager (UCM), decrypting, inspecting, and re-encrypting the voice signaling traffic. To do this, the ASA needs to have the certificates of the devices that the phone trusts, such as the UCM servers and the TFTP servers. These certificates are stored in a Certificate Trust List (CTL) file that the phone downloads from the UCM before registration. Therefore, the ASA must be added to the CTL file on the UCM platform, so that the phone can verify the identity of the ASA as a proxy. The other options are not relevant for this scenario. The Endpoint Trust List is a list of certificates that the UCM trusts for encrypted endpoints. The Enterprise Proxy Service is a feature that allows the UCM to route calls to and from the public switched telephone network (PSTN) through a SIP proxy server. The Secured Collaboration Proxy is a feature that allows the UCM to encrypt the media streams between endpoints using Secure Real-Time Transport Protocol (SRTP). References :=

Cisco Secure Firewall ASA Unified Communications Guide - TLS Proxy for Encrypted Voice Inspection

TLS Proxy for Encrypted Voice Inspection - Cisco

Where must the ASA be added on the Cisco UC Manager platform?

The login block-for command sets a limit on the maximum number of failed login attempts allowed within a defined period of time. If this limit is exceeded, no further logins are allowed for the specified period of time. This feature is designed to protect the router from denial-of-service and dictionary attacks. The syntax of the command is as follows:

login block-for < block-time-period > attempts < fail-attempts > within < login-attempt-time-period >

The  < block-time-period >  parameter specifies the duration of the quiet period in seconds. The  < fail-attempts >  parameter specifies the number of failed attempts that trigger the quiet period. The  < login-attempt-time-period >  parameter specifies the time window in seconds for counting the failed attempts.

In this question, the command login block-for 100 attempts 4 within 60 means that if four failures occur in 60 seconds, the router goes to quiet mode for 100 seconds. During the quiet period, no login attempts are accepted, and the router responds with the message “Login disabled for < block-time-period > seconds due to too many failed login attempts.” After the quiet period expires, the router resumes normal login operations.

The other options are incorrect because they do not match the command syntax or the expected behavior of the login block-for feature.

References :=

Some possible references for this question are:

User Security Configuration Guide - Cisco IOS Login Enhancements-Login Block

Configuring Login Block

Restrict login attempts : login block-for command

When applied to a router, which command would help mitigate brute-force password attacks against the router?

Explanation

Application Visibility and control (AVC) supports NetFlow to export application usage and performance

statistics. This data can be used for analytics, billing, and security policies.

Flood attacks are a type of denial-of-service (DoS) attacks that aim to saturate the bandwidth or resources of a target by sending a large number of packets or requests. Flood attacks can be classified into different categories based on the protocol or layer they target, such as ICMP, UDP, TCP SYN, HTTP, DNS, etc. Flood attacks can also be distributed (DDoS) if they involve multiple sources of attack traffic, such as compromised devices or servers123. References := 1: Denial of Service - OWASP Cheat Sheet Series 2: What is a denial-of-service (DoS) attack? | Cloudflare 3: Types of DOS attacks - GeeksforGeeks

In a Cisco Secure Workload implementation, telemetry data can be generated from IPFIX (Internet Protocol Flow Information Export) records using NetFlow connectors and Cisco Secure Workload itself. NetFlow provides insights into network traffic flow and volume, while Cisco Secure Workload uses this data for visibility, segmentation, and security analytics within the data center.

 Cisco AnyConnect with Umbrella Roaming Security module protects a user from a phishing attack by enforcing security at the DNS layer and blocking malicious domains that are used for phishing campaigns. The Umbrella Roaming Security module integrates with the Cisco AnyConnect client and provides always-on security even when no VPN is active. The Umbrella Roaming Security module can replace the existing Cisco Umbrella roaming client or be part of a new AnyConnect deployment12.

Cisco Identity Services Engine (ISE) is not an endpoint solution, but a network access control and policy enforcement platform that can integrate with AnyConnect for posture assessment and compliance3. Cisco AnyConnect with ISE Posture module is used to check the compliance status of the endpoint device and apply the appropriate network access policy based on the posture result4. Cisco AnyConnect with Network Access Manager module is used to manage the network connections and profiles of the endpoint device and support various authentication methods5. Neither of these modules directly protect the user from a phishing attack.

References :=

Roaming Client: Umbrella Roaming Security (Integration with AnyConnect)

Secure Umbrella Roaming: Cisco Secure Client (Formerly AnyConnect)

Cisco Identity Services Engine

[Cisco AnyConnect Secure Mobility Client Administrator Guide, Release 4.9 - Posture Module]

[Cisco AnyConnect Secure Mobility Client Administrator Guide, Release 4.9 - Network Access Manager Module]

Explanation

In this IaaS model, cloud providers offer resources to users/machines that include computers as virtual

machines, raw (block) storage, firewalls, load balancers, and network devices.

Note: Cloud access security broker (CASB) provides visibility and compliance checks, protects data against misuse and exfiltration, and provides threat protections against malware such as ransomware.

When a Cisco WSA receives a web request, it evaluates it against the policies in the policy table. Each policy type has a predefined, global policy, which maintains default actions for that policy type. If the web request does not match any user-defined policy, the WSA applies the global policy. The global policy can be configured to allow, block, or redirect the web request based on various criteria. The global policy acts as a catch-all policy for any web request that is not explicitly handled by a user-defined policy. References :=

User Guide for AsyncOS 11.0 for Cisco Web Security Appliances - Create Policies to Control Internet Requests

User Guide for AsyncOS 12.7 for Cisco Web Security Appliances - LD (Limited Deployment) - Acquire End-User Credentials

create an application control blocked applications list. This option allows you to specify a list of files that you want to prevent from running on the endpoints that have the AMP connector installed. The files are identified by their SHA-256 hashes, and you can upload them individually or in a batch. The files are not quarantined, but they are blocked from execution and reported as events in the AMP console1. This option is different from the simple custom detection list, which is used to detect and quarantine specific files that are considered malicious2. The advanced custom detection list is also used to detect and quarantine files, but it allows you to specify more criteria such as file size, file name, and file path3. The IP block and allow lists are used to control the network traffic to and from the endpoints, not the file execution4. References: 1: Configure Application Control on the AMP for Endpoints Portal 2: Configure a Simple Custom Detection List on the AMP for Endpoints Portal 3: [Configure an Advanced Custom Detection List on the AMP for Endpoints Portal] 4: [Configure IP Block and Allow Lists on the AMP for Endpoints Portal]

To connect Cisco Secure Workload to external orchestrators at a client site where incoming connections are not allowed, a reverse tunnel must be used. A reverse tunnel initiates the connection from the inside of the client ' s network out to the external orchestrator, thereby bypassing restrictions on incoming connections and enabling secure communication.