- Exam Code: 640-554
- Exam Name: Implementing Cisco IOS Network Security (IINS v2.0)
- Updated: Jul 19, 2026
- Q & A: 289 Questions and Answers
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| Section | Objectives |
|---|---|
| Topic 1: Site-to-Site VPNs | - IPsec VPN implementation
|
| Topic 2: LAN, SAN, Voice, and Endpoint Security | - Infrastructure security
|
| Topic 3: Network Security Principles | - Security policies and risk management
|
| Topic 4: Cryptography Fundamentals | - Encryption technologies
|
| Topic 5: Cisco IOS Intrusion Prevention System | - IPS technologies
|
| Topic 6: Cisco IOS Firewall Technologies | - Access control and firewall implementation
|
| Topic 7: Perimeter Security | - Router hardening and secure management
|
1. Which type of attack can be prevented by setting the native VLAN to an unused VLAN?
A) denial-of-service attacks
B) CAM-table overflow
C) VLAN-hopping attacks
D) MAC-address spoofing
2. Which network device does NTP authenticate?
A) The client device and the time source
B) Only the client device
C) Only the time source
D) The firewall and the client device
3. Which statement describes how the sender of the message is verified when asymmetric encryption is used?
A) The sender encrypts the message using the receiver's public key, and the receiver decrypts the message using the sender's public key.
B) The sender encrypts the message using the sender's private key, and the receiver decrypts the message using the sender's public key.
C) The sender encrypts the message using the receiver's public key, and the receiver decrypts the message using the receiver's private key.
D) The sender encrypts the message using the sender's public key, and the receiver decrypts the message using the sender's private key.
E) The sender encrypts the message using the receiver's private key, and the receiver decrypts the message using the receiver's public key.
4. On Cisco ISR routers, for what purpose is the realm-cisco.pub public encryption key used?
A) used for SSH server/client authentication and encryption
B) used to verify the digital signature of the IPS signature file
C) used to generate a persistent self-signed identity certificate for the ISR so administrators can authenticate the ISR when accessing it using Cisco Configuration Professional
D) used to enable asymmetric encryption on IPsec and SSL VPNs
E) used during the DH exchanges on IPsec VPNs
5. Which router management feature provides for the ability to configure multiple administrative views?
A) parser view view name
B) secure config privilege {level}
C) virtual routing and forwarding
D) role-based CLI
Solutions:
| Question # 1 Answer: C | Question # 2 Answer: C | Question # 3 Answer: C | Question # 4 Answer: B | Question # 5 Answer: D |
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