CompTIA Network+ N10-009

A workstation has IPv4 address 192.0.2.70/26. Which subnet contains it?

A host can ping a known server IP but cannot open the service by its hostname. Which service should be investigated first?

A laptop receives 169.254.20.8 instead of an expected corporate IPv4 lease. What does this most commonly suggest?

A switch link must carry traffic for VLANs 10, 20 and 30 to another switch. Which configuration is appropriate?

Two redundant Layer 2 links create a switching loop. Which protocol family is designed to prevent persistent loops while retaining redundancy?

A router has routes 10.20.0.0/16 and 10.20.30.0/24. Both are installed and usable. Which route matches destination 10.20.30.8?

Voice traffic becomes choppy only when a WAN link is saturated by backups. Which measure most directly addresses the congestion requirement?

A wireless office needs separate user authentication and centralized access decisions rather than one shared Wi-Fi password. Which design fits?

An administrator needs encrypted remote command-line access to a switch. Which protocol is appropriate?

A new fiber connection has no link after both transceivers are confirmed compatible. What should a technician check before changing routing protocols?

An attacker connects a rogue DHCP server to an access switch. Which switch feature can restrict DHCP server responses to approved ports?

A network team needs a baseline before investigating intermittent slowdowns. Which information is most useful?