WGU D315 COMPREHENSIVE EXAM
QUESTIONS AND CORRECT ANSWERS
STUDY GUIDE
●● Each device is connected to two adjacent devices, one on either side.
Which topology?
Answer: Ring topology
●● All devices receive all messages transmitted by a central trunk cable.
Which topology?
Answer: Bus topology
●● Which cable supports high-speed Ethernet up to 10 Gbps over short
distances?
Answer: CAT 6a
●● Every device is connected to every other device, ensuring
redundancy. Which topology?
Answer: Mesh topology
●● Which topology combines elements of multiple topologies for
scalability and redundancy?
Answer: Hybrid topology
, ●● Which Linux command scans an entire network for active hosts and
open ports?
Answer: nmap
●● Which Linux command views and manipulates the system's IP
routing table?
Answer: route
●● Which command securely copies a file to a remote server over an
encrypted connection?
Answer: scp (secure copy, runs over SSH)
●● Which command queries the IP address of a domain name to
troubleshoot DNS resolution?
Answer: nslookup
●● Which OSI layer includes HTTP?
Answer: Application layer (Layer 7)
●● Which OSI layer is responsible for a router forwarding packets
between different networks?
Answer: Network layer (Layer 3)
QUESTIONS AND CORRECT ANSWERS
STUDY GUIDE
●● Each device is connected to two adjacent devices, one on either side.
Which topology?
Answer: Ring topology
●● All devices receive all messages transmitted by a central trunk cable.
Which topology?
Answer: Bus topology
●● Which cable supports high-speed Ethernet up to 10 Gbps over short
distances?
Answer: CAT 6a
●● Every device is connected to every other device, ensuring
redundancy. Which topology?
Answer: Mesh topology
●● Which topology combines elements of multiple topologies for
scalability and redundancy?
Answer: Hybrid topology
, ●● Which Linux command scans an entire network for active hosts and
open ports?
Answer: nmap
●● Which Linux command views and manipulates the system's IP
routing table?
Answer: route
●● Which command securely copies a file to a remote server over an
encrypted connection?
Answer: scp (secure copy, runs over SSH)
●● Which command queries the IP address of a domain name to
troubleshoot DNS resolution?
Answer: nslookup
●● Which OSI layer includes HTTP?
Answer: Application layer (Layer 7)
●● Which OSI layer is responsible for a router forwarding packets
between different networks?
Answer: Network layer (Layer 3)
