Verified-Network Configuration Concepts

A DHCP server is configured with scope 192.168.0.100 to 192.168.0.199. How many host addresses can be dynamically assigned?

• 99 addresses

• 100 addresses

• 101 addresses

• 254 addresses

What is the primary purpose of DNS (Domain Name System) in networking?

• Assign IP addresses to hosts

• Resolve host names to IP addresses

• Provide network security

• Control network access

A company wants to separate guest wireless traffic from employee network access. What technology should be implemented?

• Network Address Translation (NAT)

• Virtual Local Area Networks (VLANs)

• Dynamic Host Configuration Protocol (DHCP)

• Domain Name System (DNS)

Which DNS record type is used to identify email servers for a domain?

• A (Address) record

• CNAME (Canonical Name) record

• MX (Mail Exchanger) record

• AAAA (IPv6 Address) record

True or False: DHCP reservations allow specific devices to receive the same IP address each time they connect to the network.

• True

• False

A VPN (Virtual Private Network) provides what primary benefit for remote workers?

• Faster internet connection speeds

• Secure encrypted tunnel through public networks

• Free internet access

• Unlimited bandwidth usage

What happens during the DHCP lease renewal process?

• Client requests completely new IP address

• Client attempts to extend current IP address lease

• Server assigns different IP to same client

• All network hosts restart simultaneously

Which spam management DNS record uses cryptography to validate email source servers?

• SPF (Sender Policy Framework)

• DKIM (Domain Keys Identified Mail)

• DMARC

• TXT (generic text record)