Cisco CCIE Security Written Exam (v5.0) : 400-251 valid dumps

400-251 real exams

Exam Code: 400-251

Exam Name: CCIE Security Written Exam (v5.0)

Updated: Nov 20, 2024

Q & A: 125 Questions and Answers

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Cisco 400-251 Exam Topics:

SectionWeight
Written
Weight
Lab
Objectives
Secure Connectivity and Segmentation17%19%1 Compare and contrast cryptographic and hash algorithms such as AES, DES, 3DES, ECC, SHA, and MD5

2 Compare and contrast security protocols such as ISAKMP/IKEv1, IKEv2, SSL, TLS/DTLS, ESP, AH, SAP, and MKA

3 Describe, implementc and troubleshoot remote access VPN using technologies such as FLEXVPN, SSL-VPN between Cisco firewalls, routers, and end hosts

4 Describe, implement, and troubleshoot the Cisco IOS CA for VPN authentication

5 Describe, implement, and troubleshoot clientless SSL VPN technologies with DAP and smart tunnels on Cisco ASA and Cisco FTD

6 Describe, implement, and troubleshoot site-to-site VPNs such as GETVPN, DMVPN and IPsec

7 Describe, implement, and troubleshoot uplink and downlink MACsec (802.1AE)

8 Describe, implement, and troubleshoot VPN high availability using Cisco ASA VPN clustering and dual-hub DMVPN deployments

9 Describe the functions and security implications of cryptographic protocols such as AES, DES, 3DES, ECC, SHA, MD5, ISAKMP/IKEv1, IKEv2, SSL, TLS/DTLS, ESP, AH, SAP, MKA, RSA, SCEP/EST, GDOI, X.509, WPA, WPA2, WEP, and TKIP

10 Describe the security benefits of network segmentation and isolation

11 Describe, implement, and troubleshoot VRF-Lite and VRF-Aware VPN

12 Describe, implement, and troubleshoot microsegmentation with TrustSec using SGT and SXP

13 Describe, implement, and troubleshoot infrastructure segmentation methods such as VLAN, PVLAN, and GRE

14 Describe the functionality of Cisco VSG used to secure virtual environments

15 Describe the security benefits of data center segmentation using ACI, EVPN, VXLAN, and NVGRE
Advanced Threat Protection and Content Security17%19%1 Compare and contrast different AMP solutions including public and private cloud deployment models

2 Describe, implement, and troubleshoot AMP for networks, AMP for endpoints, and AMP for content security (CWS, ESA, and WSA)

3 Detect, analyze, and mitigate malware incidents

4 Describe the benefit of threat intelligence provided by AMP Threat GRID

5 Perform packet capture and analysis using Wireshark, tcpdump, SPAN, and RSPAN

6 Describe, implement, and troubleshoot web filtering, user identification, and Application Visibility and Control (AVC)

7 Describe, implement, and troubleshoot mail policies, DLP, email quarantines, and SenderBase on ESA

8 Describe, implement, and troubleshoot SMTP authentication such as SPF and DKIM on ESA

9 Describe, implement, and troubleshoot SMTP encryption on ESA

10 Compare and contrast different LDAP query types on ESA

11 Describe, implement, and troubleshoot WCCP redirection

12 Compare and contrast different proxy methods such as SOCKS, Auto proxy/WPAD, and transparent

13 Describe, implement, and troubleshoot HTTPS decryption and DLP

14 Describe, implement, and troubleshoot CWS connectors on Cisco IOS routers, Cisco ASA, Cisco AnyConnect, and WSA

15 Describe the security benefits of leveraging the OpenDNS solution.

16 Describe, implement, and troubleshoot SMA for centralized content security management

17 Describe the security benefits of leveraging Lancope
Perimeter Security and Intrusion Prevention21%23%1 Describe, implement, and troubleshoot HA features on Cisco ASA and Cisco FirePOWER Threat Defense (FTD)

2 Describe, implement, and troubleshoot clustering on Cisco ASA and Cisco FTD

3 Describe, implement, troubleshoot, and secure routing protocols on Cisco ASA and Cisco FTD

4 Describe, implement, and troubleshoot different deployment modes such as routed, transparent, single, and multicontext on Cisco ASA and Cisco FTD

5 Describe, implement, and troubleshoot firewall features such as NAT (v4,v6), PAT, application inspection, traffic zones, policy-based routing, traffic redirection to service modules, and identity firewall on Cisco ASA and Cisco FTD

6 Describe, implement, and troubleshoot IOS security features such as Zone-Based Firewall (ZBF), application layer inspection, NAT (v4,v6), PAT and TCP intercept on Cisco IOS/IOS-XE

7 Describe, implement, optimize, and troubleshoot policies and rules for traffic control on Cisco ASA, Cisco FirePOWER and Cisco FTD

8 Describe, implement, and troubleshoot Cisco Firepower Management Center (FMC) features such as alerting, logging, and reporting

9 Describe, implement, and troubleshoot correlation and remediation rules on Cisco FMC

10 Describe, implement, and troubleshoot Cisco FirePOWER and Cisco FTD deployment such as in-line, passive, and TAP modes

11 Describe, implement, and troubleshoot Next Generation Firewall (NGFW) features such as SSL inspection, user identity, geolocation, and AVC (Firepower appliance)

12 Describe, detect, and mitigate common types of attacks such as DoS/DDoS, evasion techniques, spoofing, man-in-the-middle, and botnet
Evolving Technologies v1.110%N/A1 Cloud
a) Compare and contrast Cloud deployment models
a) [i] Infrastructure, platform, and software services (XaaS)
a) [ii] Performance and reliability
a) [iii] Security and privacy
a) [iv] Scalability and interoperability
b) Describe Cloud implementations and operations
b) [i] Automation and orchestration
b) [ii] Workload mobility
b) [iii] Troubleshooting and management
b) [iv] OpenStack components

2 Network Programmability (SDN)
a) Describe functional elements of network programmability (SDN) and how they interact
a) [i] Controllers
a) [ii] APIs
a) [iii] Scripting
a) [iv] Agents
a) [v] Northbound vs. Southbound protocols
b) Describe aspects of virtualization and automation in network environments
b) [i] DevOps methodologies, tools and workflows
b) [ii] Network/application function virtualization (NFV, AFV)
b) [iii] Service function chaining
b) [iv] Performance, availability, and scaling considerations

3 Internet of Things (IoT)
a) Describe architectural framework and deployment considerations for Internet of Things
a) [i] Performance, reliability and scalability
a) [ii] Mobility
a) [iii] Security and privacy
a) [iv] Standards and compliance
a) [v] Migration
a) [vi] Environmental impacts on the network
Identity Management, Information Exchange, and Access Control22%24%1 Describe, implement, and troubleshoot various personas of ISE in a multinode deployment

2 Describe, implement, and troubleshoot network access device (NAD), ISE, and ACS configuration for AAA

3 Describe, implement, and troubleshoot AAA for administrative access to Cisco network devices using ISE and ACS

4 Describe, implement, verify, and troubleshoot AAA for network access with 802.1X and MAB using ISE.

5 Describe, implement, verify, and troubleshoot cut-through proxy/auth-proxy using ISE as the AAA server

6 Describe, implement, verify, and troubleshoot guest life cycle management using ISE and Cisco network infrastructure

7 Describe, implement, verify, and troubleshoot BYOD on-boarding and network access flows with an internal or external CA

8 Describe, implement, verify, and troubleshoot ISE and ACS integration with external identity sources such as LDAP, AD, and external RADIUS

9 Describe ISE and ACS integration with external identity sources such as RADIUS Token, RSA SecurID, and SAML

10 Describe, implement, verify, and troubleshoot provisioning of AnyConnect with ISE and ASA

11 Describe, implement, verify, and troubleshoot posture assessment with ISE

12 Describe, implement, verify, and troubleshoot endpoint profiling using ISE and Cisco network infrastructure including device sensor

13 Describe, implement, verify, and troubleshoot integration of MDM with ISE

14 Describe, implement, verify, and troubleshoot certificate based authentication using ISE

15 Describe, implement, verify, and troubleshoot authentication methods such as EAPChaining and Machine Access Restriction (MAR)

16 Describe the functions and security implications of AAA protocols such as RADIUS, TACACS+, LDAP/LDAPS, EAP (EAP-PEAP, EAP-TLS, EAP-TTLS, EAP-FAST, EAP-TEAP, EAP- MD5, EAP-GTC), PAP, CHAP, and MS-CHAPv2

17 Describe, implement, and troubleshoot identity mapping on ASA, ISE, WSA and FirePOWER

18 Describe, implement, and troubleshoot pxGrid between security devices such as WSA, ISE, and Cisco FMC
Infrastructure Security, Virtualization, and Automation13%15%1 Identify common attacks such as Smurf, VLAN hopping, and SYNful knock, and their mitigation techniques

2 Describe, implement, and troubleshoot device hardening techniques and control plane protection methods, such as CoPP and IP Source routing.

3 Describe, implement, and troubleshoot management plane protection techniques such as CPU and memory thresholding and securing device access

4 Describe, implement, and troubleshoot data plane protection techniques such as iACLs, uRPF, QoS, and RTBH

5 Describe, implement, and troubleshoot IPv4/v6 routing protocols security

6 Describe, implement, and troubleshoot Layer 2 security techniques such as DAI, IPDT, STP security, port security, DHCP snooping, and VACL

7 Describe, implement, and troubleshoot wireless security technologies such as WPA, WPA2, TKIP, and AES

8 Describe wireless security concepts such as FLEX Connect, wIPS, ANCHOR, Rogue AP, and Management Frame Protection (MFP)

9 Describe, implement, and troubleshoot monitoring protocols such as NETFLOW/IPFIX, SNMP, SYSLOG, RMON, NSEL, and eSTREAMER

10 Describe the functions and security implications of application protocols such as SSH, TELNET, TFTP, HTTP/HTTPS, SCP, SFTP/FTP, PGP, DNS/DNSSEC, NTP, and DHCP

11 Describe the functions and security implications of network protocols such as VTP, 802.1Q, TCP/UDP, CDP, LACP/PAgP, BGP, EIGRP, OSPF/OSPFv3, RIP/RIPng, IGMP/CGMP, PIM, IPv6, and WCCP

12 Describe the benefits of virtualizing security functions in the data center using ASAv, WSAv, ESAv, and NGIPSv

13 Describe the security principles of ACI such as object models, endpoint groups, policy enforcement, application network profiles, and contracts

14 Describe the northbound and southbound APIs of SDN controllers such as APIC-EM
15 Identify and implement security features to comply with organizational security policies, procedures, and standards such as BCP 38, ISO 27001, RFC
827, and PCI-DSS

16 Describe and identify key threats to different places in the network (campus, data center, core, edge) as described in Cisco SAFE

17 Validate network security design for adherence to Cisco SAFE recommended practices
18 Interpret basic scripts that can retrieve and send data using RESTful API calls in scripting languages such as Python

19 Describe Cisco Digital Network Architecture (DNA) principles and components.

Reference: http://www.cisco.com/c/en/us/training-events/training-certifications/exams/current-list/400-251-ccie-security.html

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Free Download 400-251 valid dump

Cisco 400-251 Exam Certification Details:

Duration120 minutes
Exam NameCCIE Security Written Exam
Passing ScoreVariable (750-850 / 1000 Approx.)
Number of Questions90-110
Exam Price$450 USD
Exam Code400-251 CCIE S
Sample QuestionsCisco 400-251 Sample Questions
Exam RegistrationPEARSON VUE
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