Network+ Practice Questions Day 11

Which of the following protocol types describes secure communication on port 443?

• a) ICMP

• b) UDP

• c) HTTPS

• d) IP

Which of the following technologies allows traffic to be sent through two different ISPs to increase performance?

• a) Fault tolerance

• b) Quality of service

• c) Load balancing

• d) Port aggregation

Which of the following is the physical topology for an Ethernet LAN?

• a) Bus

• b) Ring

• c) Mesh

• d) Star

Which of the following service models would MOST likely be used to replace on-premises servers with a cloud solution?

• a) PaaS

• b) IaaS

• c) SaaS

• d) Disaster recovery as a Service (DRaaS)

A network technician is manually configuring the network settings for a new device and is told the network block is 192.168.0.0/20. Which of the following subnet masks should the technician use?

• a) 255.255.128.0

• b) 255.255.192.0

• c) 255.255.240.0

• d) 255.255.248.0

A network engineer is investigating reports of poor network performance. Upon reviewing a report, the engineer finds that jitter at the office is greater than 10ms on the only WAN connection available. Which of the following would be MOST affected by this statistic?

• a) A VoIP sales call with a customer

• b) An in-office video call with a coworker

• c) Routing table from the ISP

• d) Firewall CPU processing time

A network administrator is configuring a load balancer for two systems. Which of the following must the administrator configure to ensure connectivity during a failover?

• a) VIP

• b) NAT

• c) APIPA

• d) IPv6 tunneling

A fiber link connecting two campus networks is broken. Which of the following tools should an engineer use to detect the exact break point of the fiber link?

• a) OTDR

• b) Tone generator

• c) Fusion splicer

• d) Cable tester

A network administrator has been directed to present the network alerts from the past week to the company's executive staff. Which of the following will provide the BEST collection and presentation of this data?

• a) A port scan printout

• b) A consolidated report of various network devices

• c) A report from the SIEM tool

• d) A report from a vulnerability scan done yesterday

A technician is installing a high-density wireless network and wants to use an available frequency that supports the maximum number of channels to reduce interference. Which of the following standard 802.11 frequency ranges should the technician look for while reviewing WAP specifications?

• a) 2.4GHz

• b) 5GHz

• c) 6GHz

• d) 900MHz