network+ 16 practice

What is the primary role of a DNS forward lookup zone?

• Delegates authority for subdomains

• Maintains a cache of previously resolved queries

• Defines the authoritative name server for the domain

• Maps hostnames to IP addresses

A DNS reverse lookup zone:

• Maps IP addresses to hostnames

• Handles recursive queries for IP address resolution

• Manages zone transfers between DNS servers

• Resolves wildcard domain queries

Which type of DNS server is responsible for storing and providing the original DNS records for a domain?

• Anycast DNS server

• Forwarding DNS server

• Root DNS server

• Authoritative DNS server

Which type of DNS server responds to queries using cached or forwarded data but does not hold the original records for a domain?

• Load-balancing DNS server

• Dynamic DNS server

• Secondary DNS server

• Non-authoritative DNS server

An authoritative DNS server that stores original records for a domain is referred to as:

• Public DNS server

• Root DNS server

• Primary DNS server

• Global DNS server

Which of the answers listed below refers to a backup DNS server that holds a copy of the DNS records for a domain?

• Caching DNS server

• Failover DNS server

• Secondary DNS server

• Mirrored DNS server

Which type of DNS lookup involves a DNS server contacting multiple servers on behalf of the client to fully resolve a domain name and return the corresponding IP address?

• Recursive DNS lookup

• Dynamic DNS lookup

• Iterative DNS lookup

• Non-recursive DNS lookup

Which of the following can be used on a local machine to override DNS settings?

• NIC settings

• Hosts file

• DNS cache

• Routing table

Which of the answers listed below refers to a time synchronization protocol designed for environments requiring nanosecond precision (e.g., financial systems, industrial automation)?

• RTP

• TSP

• PTP

• NTP

Which of the following answers refers to a solution designed to protect time synchronization data against various types of attacks?

• NTS

• SNTP

• NTP

• TSP