JK0-023 Online Practice Questions and Answers

Jeff a network administratorf would like to ensure that the footprint of the companyns wireless coverage is limited to the ofce bordersf located on the premises. Which of the following features should he adjust on all of the companyns WAPs to make this change?

A. SSID masking

B. PPPoE

C. Transmission power

D. Encrypton technology

Which of the following cable types is MOST commonly used with POTS?

A. CAT3

B. Multmode

C. CAT6

D. Coaxial

Two duplicate pieces of equipment can be used in conjuncton for which of the following purposes? (Select TWO).

A. High availability

B. Fault tolerance

C. Reduce latency

D. Wi-MAX

E. CARP

A network administrator is reviewing logs and notces that a device with a public IP address is trying to access the web server RDP port. Which of the following tools can be used to resolve the domain of the public IP address?

A. arp

B. nslookup

C. ipconfg

D. netstat

A network administrator opens up the RDP port to access network resources from home. Several months laterf the administratorns account is getng locked out constantly. Afer closing the portf which of the following should be used to identfy the source of the atack?

A. Network maps

B. Change management

C. Log analysis

D. Protocol analyier

Which of the following will BEST block a host from accessing the LAN on a network using statc IP addresses?

A. IP fltering

B. Port fltering

C. MAC address fltering

D. DHCP lease

The process of restrictng internal web trafc to an employee-only website based upon Layer 3 addresses is known as which of the following?

A. MAC fltering

B. Trafc shaping

C. Session fltering

D. IP fltering

Which of the following describes blocking trafc based upon the Layer 3 sources address of the trafc?

A. Port fltering

B. IP fltering

C. MAC fltering

D. Applicaton fltering

An administrator wants to translate an internal workstaton name to an IP address. Which of the following commands would be used?

A. ifconfg

B. nslookup

C. netstat

D. ipconfg

A small ofce home ofce (SOHO) customer is going to be replacing their switch. The customer also wants to add a WAP in a dropped ceiling; howeverf there are no power outlets above the drop ceilingf but there is a CAT5e network jack. Which of the following technologies should the new switch have to allow this WAP to be placed where the customer requestsf without any other major changes to the environment?

A. PoE

B. Layer 3 switching

C. STP

D. VLAN

Which of the following BEST describes the diference between layer 2 switching and layer 2 routng?

A. Switching moves packets between hosts on diferent subnetsf and routng moves packets between hosts on the same subnet.

B. Routng moves packets between hosts on diferent subnetsf and switching moves packets between hosts on the same subnet.

C. Both routng and switching move packets between hosts on the same subnetf but routng does so at a faster pace.

D. Both routng and switching move packets between hosts on diferent subnetsf but switching does so at a faster pace.

Which of the following protocols is used to allow multple hosts to share a common IP address?

A. HTTPS

B. ARP

C. CARP D. NAT

A network technician is installing a simple SOHO router with wireless functonality. Which of the following wireless encrypton standards would be BEST suited for the HIGHEST level of security?

A. WPA2

B. WPA

C. WEP64

D. WEP128

A technician wants to separate networks on a switch. Which of the following should be confgured to allow this?

A. VLAN

B. Trunking

C. Spanning tree

D. Trafc fltering

Which of the following technologies allows for redundant links within a Layer 2 segment?

A. OSPF

B. RIP

C. Port Mirroring

D. Spanning Tree