WGU D315 - PRE-ASSESSMENT: NETWORK AND SECURITY – FOUNDATIONS QUESTIONS WITH COMPLETE SOLUTIONS, A+

Which OSI layer is related to the function of the IP protocol suite? a. Transport b. Network c. Data Link d. Session - Network Which OSI layer is responsible for organizing how bits are passed over the physical layer between devices within the same collision domain? a. Frame b. Connection c. Transport d. Data Link - Data Link Which OSI layer would define the scope of a protocol that makes sure packets of data are received correctly and resends them if they are not? a. Validation b. Transmission c. Transport d. Connection - Transport Which protocol suite performs functions of OSI layer 4? a. IPX b. MAC c. CSMA/CD d. TCP - TCP Which type of Ethernet cable can maintain 10Gbps transmission speeds through the course of its maximum 100-meter length? a. CAT 5e b. CAT 5 c. CAT 3 d. CAT 6a - CAT 6a Which Internet access technology uses ordinary telephone wires for data transmission? a. DSL b. Cable c. Wi-Fi d. Hotspot - DSL Which device is used to organize network cables as they run between switches and other network devices? a. Jack b. Hub c. Patch Panel d. Router - Patch Panel Which network device is used to connect two or more network segments by performing OSI layer 3 functions like packet-forwarding? a. Router b. Repeater c. Wire d. Switch - Router Which network device is used to convert between digital information from a LAN and analog signals for transmission over a standard telephone wire? a. Repeater b. Modem c. Signal Generator d. Bit Stretcher - Modem Which device could be used to send commands to the mainframe for remote execution in early mainframe installations? a. Distributed Screens b. Dumb Terminals c. Execution Displays d. Command Receivers - Dumb Terminals Which device is responsible for implementing network address translation (NAT)? a. Modem b. Router c. NIC d. Switch - Router Which command produces the following output? Non-authoritative answer: Name: Address: 172.217.11.132 a. dig b. nslookup d. whois d. nmap - nslookup Which command should be used to manually enter the default gateway for a computer? a. route b. ipconfig c. arp d. netstat - route Which network diagnostic tool displays the path packets take between two endpoints? a. ifconfig b. traceroute c. ftp d. nslookup - traceroute Which network type is used to wire multiple PCs to a home router? a. LAN b. PAN c. MAN d. WAN - LAN An office's infrastructure connects network devices and printers through a central access point without the use of cabling. Which network type does this office use? a. WLAN b. WAN c. CAN d. SAN - WLAN What type of medium is commonly used within a 1000 Mbps Ethernet network? a. CAT 5 b. CAT5e c. Coax d. Wireless - CAT5e Which network topology is shown in the following diagram? a. Full mesh b. Star c. Bus d. Ring - Full Mesh Which network topology is being implemented when each node connects to exactly two other nodes, forming a single continuous pathway for signals through each node? a. Star b. Full Mesh c. Ring d. Bus - Ring In which physical LAN topology are nodes connected to each other with a backbone cable that loops around and ends at the same point it started? a. Ring b. Bus c. Star d. Tree - Ring Which OSI layer ensures error-free packets? a. Application b. Transport c. Session d. Presentation - Transport