CCNA daily web practice

Correct answer: Set up multiple internal NTP servers in a hierarchy with clients pointing to the nearest server. Setting up multiple internal NTP servers in a hierarchy reduces reliance on external time sources, minimizes operational costs, and ensures accurate time across the network. This matters because using an internal NTP hierarchy enhances network security by reducing external dependencies and maintains compliance through reliable time synchronization.

Correct answer: Set up MAC address filtering. It restricts access to only those devices with MAC addresses that are explicitly allowed. This matters because understanding how to restrict WLAN access by MAC address is crucial for securing network resources against unauthorized users.

Correct answer: OSPF because it has a lower administrative distance. OSPF has a lower administrative distance, making it the preferred route over RIP. This matters because understanding how routers prioritize routes based on administrative distance is crucial for configuring and troubleshooting network paths effectively.

Correct answer: Authentication. It involves confirming the identity of users or devices before granting them access to network resources. This matters because understanding AAA concepts helps in securing network access by ensuring only authorized users gain entry to resources.

Correct answer: By analyzing historical traffic patterns to identify anomalies. By analyzing historical traffic patterns to identify anomalies, predictive AI can anticipate and prevent security breaches before they occur. This matters because understanding how predictive AI can anticipate security threats enhances network defense strategies and prepares candidates for real-world cybersecurity challenges.

Anycast is the correct IPv6 address type in this scenario. Multiple routers can share the same address so traffic is delivered to the nearest reachable instance. This matters because IPv6 addressing questions often test whether you can distinguish between one-to-one, one-to-many, and nearest-instance delivery models.

Correct answer: Crypto key generate rsa general-keys label mykey. It generates RSA keys necessary for enabling RSA key-based authentication in SSH configurations. This matters because understanding how to generate RSA keys is crucial for securing remote access through SSH without using passwords.

SSH is the correct protocol for this task. It encrypts remote command-line management traffic instead of sending credentials and commands in clear text. This matters because remote device administration questions often test whether you can separate secure management protocols from legacy plain-text ones.

Correct answer: Host route. A host route directs traffic to one exact IP address, which makes it the right tool when only 192.168.50.10 needs a special path through R2. This matters because host routes are the precise static-route option when only one destination address needs special handling.

Correct answer: Installing biometric scanners at entry points. Biometric scanners ensure only authorized individuals can enter secure areas based on unique biological traits. This matters because physical security measures like biometric scanners prevent data breaches and protect sensitive information from unauthorized access.