Studied by 0 people
Looks like no one added any tags here yet for you.
A systems administrator needs to improve WiFi performance in a densely populated office tower and use the latest standard. There is a mix of devices that use 2.4 GHz and 5 GHz. Which of the following should the systems administrator select to meet this requirement?
802.11ax
Which of the following would be BEST to use to detect a MAC spoofing attack?
Reverse Address Resolution Protocol
A technician receives feedback that some users are experiencing high amounts of jitter while using the wireless network. While troubleshooting the network, the technician uses the ping command with the IP address of the default gateway and verifies large variations in latency. The technician thinks the issue may be interference from other networks and non-802.11 devices. Which of the following tools should the technician use to troubleshoot the issue?
Spectrum analyzer
Wireless users are reporting intermittent internet connectivity. Connectivity is restored when the users disconnect and reconnect, utilizing the web authentication process each time. The network administrator can see the devices connected to the APs at all times. Which of the following steps will MOST likely determine the cause of the issue?
Verify the session time-out configuration on the captive portal settings Most Voted
A network administrator walks into a datacenter and notices an unknown person is following closely. The administrator stops and directs the person to the security desk. Which of the following attacks did the network administrator prevent?
Tailgating
A network is experiencing a number of CRC errors during normal network communication. At which of the following layers of the OSI model will the administrator
MOST likely start to troubleshoot?
Layer 1 Most Voted
Layer 2
A client recently added 100 users who are using VMs. All users have since reported slow or unresponsive desktops. Reports show minimal network congestion, zero packet loss, and acceptable packet delay. Which of the following metrics will MOST accurately show the underlying performance issues? (Choose two.)
CPU usage
Memory
Client devices cannot enter a network, and the network administrator determines the DHCP scope is exhausted. The administrator wants to avoid creating a new
DHCP pool. Which of the following can the administrator perform to resolve the issue?
Reduce the lease time
An administrator is writing a script to periodically log the IPv6 and MAC addresses of all the devices on a network segment. Which of the following switch features will MOST likely be used to assist with this task?
Neighbor Discovery Protocol Most
Which of the following DNS records works as an alias to another record?
CNAME
A company built a new building at its headquarters location. The new building is connected to the company's LAN via fiber-optic cable. Multiple users in the new building are unable to access the company's intranet site via their web browser, but they are able to access internet sites. Which of the following describes how the network administrator can resolve this issue?
Correct the DNS server entries in the DHCP scope
A technician is installing a new fiber connection to a network device in a datacenter. The connection from the device to the switch also traverses a patch panel connection. The chain of connections is in the following order:
✑ Device
✑ LC/LC patch cable
✑ Patch panel
✑ Cross-connect fiber cable
✑ Patch panel
✑ LC/LC patch cable
✑ Switch
The connection is not working. The technician has changed both patch cables with known working patch cables. The device had been tested and was working properly before being installed. Which of the following is the MOST likely cause of the issue?
TX/RX is reversed
A technician is searching for a device that is connected to the network and has the device's physical network address. Which of the following should the technician review on the switch to locate the device's network port?
MAC table
Which of the following provides redundancy on a file server to ensure the server is still connected to a LAN even in the event of a port failure on a switch?
NIC teaming
An IT organization needs to optimize speeds for global content distribution and wants to reduce latency in high-density user locations. Which of the following technologies BEST meets the organization's requirements?
Content delivery network
A user reports being unable to access network resources after making some changes in the office. Which of the following should a network technician do FIRST?
Ask what changes were made
A new cabling certification is being requested every time a network technician rebuilds one end of a Cat 6 (vendor-certified) cable to create a crossover connection that is used to connect switches. Which of the following would address this issue by allowing the use of the original cable?
MDIX
A company hired a technician to find all the devices connected within a network. Which of the following software tools would BEST assist the technician in completing this task?
IP scanner
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?
5GHz
A technician is configuring a network switch to be used in a publicly accessible location. Which of the following should the technician configure on the switch to prevent unintended connections?
Port security
Which of the following is used to track and document various types of known vulnerabilities?
CVE
The network administrator is informed that a user's email password is frequently hacked by brute-force programs. Which of the following policies should the network administrator implements to BEST mitigate this issue? (Choose two.)
Two-factor authentication
Complex passwords
A network engineer performs the following tasks to increase server bandwidth:
✑ Connects two network cables from the server to a switch stack
✑ Configure LACP on the switchports
Verifies the correct configurations on the switch interfaces
Which of the following needs to be configured on the server?
NIC teaming
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 subnets should the technician use?
255.255.240.0
Which of the following is the LARGEST MTU for a standard Ethernet frame?
1500
Given the following information:
Which of the following command-line tools would generate this output?
netstat
According to troubleshooting methodology, which of the following should the technician do NEXT after determining the most likely probable cause of an issue?
Test the theory to determine the cause
Which of the following BEST describes a network appliance that warns of unapproved devices that are accessing the network?
IDS
A technician is installing a cable modem in a SOHO. Which of the following cable types will the technician MOST likely use to connect a modem to the ISP?
Coaxial
A network technician is reviewing the interface counters on a router interface. The technician is attempting to confirm a cable issue. Given the following information:
Which of the following metrics confirms there is a cabling issue?
CRCs
Which of the following is the physical topology for an Ethernet LAN?
Star
An IT director is setting up new disaster and HA policies for a company. Limited downtime is critical to operations. To meet corporate requirements, the director set up two different datacenters across the country that will stay current on data and applications. In the event of an outage, the company can immediately switch from one datacenter to another. Which of the following does this BEST describe?
A hot site
The management team needs to ensure unnecessary modifications to the corporate network are not permitted and version control is maintained. Which of the following documents would BEST support this?
A change management policy
Which of the following is MOST likely to generate significant East-West traffic in a datacenter?
A duplication of a hosted virtual server to another physical server for redundancy
A technician is troubleshooting a network switch that seems to stop responding to requests intermittently whenever the logging level is set for debugging. Which of the following metrics should the technician check to begin troubleshooting the issue?
CPU utilization
A technician wants to deploy a new wireless network that comprises 30 WAPs installed throughout a three-story office building. All the APs will broadcast the same SSID for client access. Which of the following BEST describes this deployment?
Extended service set
A user tries to ping 192.168.1.100 from the command prompt on the 192.168.2.101 network but gets the following response: U.U.U.U. Which of the following needs to be configured for these networks to reach each other?
Default gateway
A branch of a company recently switched to a new ISP. The network engineer was given a new IP range to assign. The ISP assigned 196.26.4.0/26, and the branch gateway router now has the following configurations on the interface that peers to the ISP:
The network engineer observes that all users have lost Internet connectivity. Which of the following describes the issue?
The incorrect gateway was configured
Within the realm of network security, Zero Trust:
prevents attackers from moving laterally through a system
Which of the following service models would MOST likely be used to replace on-premises servers with a cloud solution?
IaaS
Which of the following factors should be considered when evaluating a firewall to protect a datacenter's east-west traffic?
Traffic between VMs running on different hosts
Which of the following is used to prioritize Internet usage per application and per user on the network?
Bandwidth management
A network administrator needs to query the NSs for a remote application. Which of the following commands would BEST help the administrator accomplish this task?
dig
Which of the following would MOST likely be used to review previous upgrades to a system?
Change management
A technician is deploying a new switch model and would like to add it to the existing network monitoring software. The technician wants to know what metrics can be gathered from a given switch. Which of the following should the technician utilize for the switch?
MIB
A network device is configured to send critical events to a syslog server; however, the following alerts are not being received:
Severity 5 LINK-UPDOWN: Interface 1/1, changed state to down
Severity 5 LINK-UPDOWN: Interface 1/3, changed state to down
Which of the following describes the reason why the events are not being received?
The network device is not configured to log that level to the syslog server
A network administrator is implementing OSPF on all of a company's network devices. Which of the following will MOST likely replace all the company's hubs?
A Layer 3 switch
A network administrator discovers that users in an adjacent building are connecting to the company's guest wireless network to download inappropriate material.
Which of the following can the administrator do to MOST easily mitigate this issue?
Reduce the wireless power levels
A network administrator is designing a new datacenter in a different region that will need to communicate to the old datacenter with a secure connection. Which of the following access methods would provide the BEST security for this new datacenter?
Site-to-site VPN
An attacker is attempting to find the password to a network by inputting common words and phrases in plaintext to the password prompt. Which of the following attack types BEST describes this action?
Dictionary attack
Which of the following technologies provides a failover mechanism for the default gateway?
FHRP
The following configuration is applied to a DHCP server connected to a VPN concentrator:
There are 300 non-concurrent sales representatives who log in for one hour a day to upload reports, and 252 of these representatives are able to connect to the
VPN without any Issues. The remaining sales representatives cannot connect to the VPN over the course of the day. Which of the following can be done to resolve the issue without utilizing additional resources?
Decrease the lease duration
A technician needs to configure a Linux computer for network monitoring. The technician has the following information:
Linux computer details:
After connecting the Linux computer to the mirror port on the switch, which of the following commands should the technician run on the Linux computer?
ifconfig ecth0 promisc
A network engineer is investigating reports of poor network performance. Upon reviewing a device configuration, the engineer finds that duplex settings are mismatched on both ends. Which of the following would be the MOST likely result of this finding?
Increased CRC errors
Which of the following devices would be used to manage a corporate WLAN?
A wireless controller
Which of the following types of devices can provide content filtering and threat protection, and manage multiple IPSec site-to-site connections?
Next-generation firewall
An engineer notices some late collisions on a half-duplex link. The engineer verifies that the devices on both ends of the connection are configured for half duplex.
Which of the following is the MOST likely cause of this issue?
The cable length is excessive
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?
VIP
Note
Flashcard