Last Minute Flashcards
Logs show an unauthorized IP address entering a secure part of the network every night at 8:00 p.m. The network administrator is concerned that this IP address will cause an issue to a critical server and would like to deny the IP address at the edge of the network. Which of the following solutions would address these concerns?
Changing the VLAN of the web server
Changing the server’s IP address
Implementing an ACL
Installing a rule on the firewall connected to the web server
Implementing an ACL
Which of the following is an advanced distance vector routing protocol that automates routing tables and also uses some features of link-state routing protocols?
OSPF
RIP
EIGRP
BGP
EIGRP
A PC user who is on a local network reports very slow speeds when accessing files on the network server. The user’s PC is connecting, but file downloads are very slow when compared to other users’ download speeds. The PC’s NIC should be capable of Gigabit Ethernet. Which of the following will MOST likely fix the issue?
Releasing and renewing the PC’s IP address
Replacing the patch cable
Reseating the NIC inside the PC
Flushing the DNS cache
Replacing the patch cable
Which of the following are environmental factors that should be considered when installing equipment in a building? (Choose two.)
Fire suppression system
UPS location
Humidity control
Power load
Floor construction type
Proximity to nearest MDF
Fire suppression system
Humidity control
A systems administrator is investigating why users cannot reach a Linux web server with a browser but can ping the server IP. The server is online, the web server process is running, and the link to the switch is up. Which of the following commands should the administrator run on the server first?
traceroute
netstat
tcpdump
arp
netstat
A technician is investigating an intermittent connectivity issue that occurs when specific WAPs are turned on. The technician checks into the issue further and finds the WAPs that are having issues share channel five. Which of the following is most likely causing the issue?
Polarization
Interference
Incorrect channel
Low power levels
Incorrect channel
The cybersecurity department needs to monitor historical IP network traffic on the WAN interface of the outside router without installing network sensors. Which of the following would be best to allow the department to complete this task?
Enabling NetFlow on the interface
Enabling SSH on the interface
Enabling SNMP on the interface
Enabling 802.1Q on the interface
Enabling NetFlow on the interface
An administrator is investigating reports of network slowness in a building. While looking at the uplink interface statistics in the switch’s CLI, the administrator discovers the uplink is at 100% utilization. However, the administrator is unsure how to identify what traffic is causing the saturation. Which of the following tools should the administrator utilize to identify the source and destination addresses of the traffic?
SNMP
Traps
Syslog
NetFlow
NetFlow
A network technician wants to identify which DNS servers a computer is configured to use. Which of the following commands should the technician use?
nbtstat
arp
nslookup
netstat
nslookup
Which of the following protocols uses Dijkstra’s algorithm to calculate the LOWEST cost between routers?
RIP
OSPF
BGP
EIGRP
OSPF
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
Layer 2
Layer 3
Layer 4
Layer 5
Layer 6
Layer 7
Layer 2
According to troubleshooting methodology, which of the following should the technician do NEXT after determining the most likely probable cause of an issue?
Establish a plan of action to resolve the issue and identify potential effects
Verify full system functionality and, if applicable, implement preventive measures
Implement the solution or escalate as necessary
Test the theory to determine the cause
Test the theory to determine the cause
A technician is troubleshooting a wireless connectivity issue in a small office located in a high-rise building. Several APs are mounted in this office. The users report that the network connections frequently disconnect and reconnect throughout the day. Which of the following is the MOST likely cause of this issue?
The AP association time is set too low
EIRP needs to be boosted
Channel overlap is occurring
The RSSI is misreported
EIRP needs to be boosted
