Net +

Which of the following is an example of an IPv4 address?

• 2001:db8:3333:4444:CCCC:DDDD:EEEE:FFFF

• 192.168.1.254

• 00:AB:FA:B1:07:34

• ::1

Answer explanation

An IPv4 address is notated as four decimal numbers each between 0 and 255 separated by dots

All four octets make up a 32-bit binary IPv4 address.

A technician needs to limit the amount of broadcast traffic on a network and allow different segments to communicate with each other. Which of the following options would make these requirements?

• Add a router and enable OSPF.

• Add a layer 3 switch and create a VLAN.

• Add a bridge between two switches.

• Add a firewall and implement proper ACL

A technician is configuring a managed switch and needs to enable 802.3af. Which of the following should the technician enable?

• PoE

• Port bonding

• VLAN

• Trunking

Answer explanation

Power over Ethernet (PoE) is defined by the IEEE 802.3af and 802.3at standards.PoE allows an Ethernet switch to provide power to an attached device (for example, a wireless access point, security camera, orIP phone) by applying power to the same wires in a UTP cable that are used to transmit and receive data.

A company has had several virus infections over the past few months. The infections were caused by vulnerabilities in the application versions that are being used. Which of the following should an administrator implement to prevent future outbreaks?

• Host-based intrusion detection systems

• Acceptable use policies

• Incident response team

• Patch management

Answer explanation

As vulnerabilities are discovered, the vendors of the operating systems or applications often respond by releasing a patch. A patch is designed to correct a known bug or fix a known vulnerability, such as in this case to be vulnerable to virus infections, in a piece of software. A patch differs from an update, which, in addition to fixing a known bug or vulnerability, adds one or more features to the software being updated.

Which of the following protocols must be implemented in order for two switches to shareVLAN information?

• VTP

• MPLS

• STP

• PPTP

Answer explanation

The VLAN Trunking Protocol (VTP) allows a VLAN created on one switch to be propagated to other switches in a group of switches (that is, a VTP domain).

Network segmentation provides which of the following benefits?

• Security through isolation

• Link aggregation

• Packet flooding through all ports

• High availability through redundancy

Which of the following concepts are MOST important for a company's long term health in the event of a disaster? (Select TWO).

• Redundancy

• Implementing acceptable use policy

• Offsite backups

• Uninterruptable power supplies

• Vulnerability scanning

Which of the following is a security benefit gained from setting up a guest wireless network?

• Optimized device bandwidth

• Isolated corporate resources

• Smaller ACL changes

• Reduced password resets

Answer explanation

A wireless guest network could be set up so that it has limited access (no access to local resources) but does provide Internet access for guest users.

An organization has noticed an uptick in ransomware on its network. Which of the following measures has to be put into practice to lessen the incidents?

• ARP inspection

• Intrusion detection system

• Web content filtering

• Port filtering

Which of the following technologies is designed to keep systems uptime running in the event of a disaster?

• High availability

• Load balancing

• Quality of service

• Caching engines

Answer explanation

High Availability is the elimination of a single point of failure to enable applications to continue to operate even if one of the IT components it depends on, such as a server, fails