MCQs

Disclaimer:

Educational Use Only:

The website links provided are to be used strictly for educational and knowledge-gaining purposes only.

No Misuse:

Do not misuse the links or the information contained therein for any commercial, illegal, or unethical activities.

Respect for Websites and Businesses:

Respect the intellectual property and business interests of the websites and their owners. Do not attempt to alter, copy, or redistribute content without proper authorization.

Acknowledge Value of Knowledge:

Recognize and value the knowledge and resources shared by these websites. Use the information responsibly and ethically.

No Endorsement:

The provision of these links does not imply endorsement of the linked sites, their content, or their products and services. Users are responsible for evaluating the suitability and accuracy of the information.

User Responsibility:

By accessing these links, you agree to use the information at your own risk and to comply with all applicable laws and website terms of use.

Overall MCQs for Reference

Which command is primarily used to test basic network connectivity between two hosts?
a. nslookup
b. tracert
c. ping
d. route
Answer: c. pinginterviewbit
What configuration error often causes a host to be unable to reach a remote subnet?
a. Incorrect firewall rules
b. Wrong default gateway setting
c. Physical cable fault
d. OS update failure
Answer: b. Wrong default gateway settingitexamanswers
Which protocol assists in the automatic assignment of IP addresses and can influence subnet reachability?
a. TCP
b. DNS
c. DHCP
d. SMTP
Answer: c. DHCPsanfoundry
In which scenario would running the ‘tracert’ command help troubleshoot remote subnet issues?
a. OS update check
b. Routing path determination
c. Disk space analysis
d. Virus detection
Answer: b. Routing path determinationinterviewbit
If two devices are on different subnets, what must be present for communication to occur?
a. Direct cable connection
b. Default gateway
c. Same OS
d. Bluetooth pairing
Answer: b. Default gatewayinterviewbit
A misconfigured subnet mask can prevent access to remote subnets by causing which problem?
a. IP conflict
b. Malformed packets
c. Improper routing
d. ARP failure
Answer: c. Improper routinginterviewbit
What device typically routes traffic between different subnets?
a. Switch
b. Router
c. Firewall
d. Hub
Answer: b. Routerinterviewbit
Why would a server on subnet A fail to connect with a server on subnet B in a properly cabled network?
a. Incorrect subnet mask
b. Too many simultaneous connections
c. Slow CPU
d. Software license expiration
Answer: a. Incorrect subnet maskinterviewbit
Which of the following is a common troubleshooting step for remote subnet issues?
a. Disable antivirus
b. Check routing table
c. Upgrade NIC
d. Defragment disk
Answer: b. Check routing tableinterviewbit
What is likely the cause if ‘ping’ works for the local subnet but fails for a remote subnet?
a. Local firewall
b. Gateway configuration error
c. ARP cache overflow
d. High memory usage
Answer: b. Gateway configuration errorinterviewbit
Which diagnostic command displays all hops between a client and a remote server?
a. ping
b. netstat
c. tracert
d. nslookup
Answer: c. tracertinterviewbit
An incorrectly configured VLAN can lead to what issue?
a. Inability to reach remote subnets
b. Slow download speeds
c. File system errors
d. Browser crashes
Answer: a. Inability to reach remote subnetstestbook
In TCP/IP, failure to reach a remote subnet can result from missing entries in which table?
a. DNS table
b. Routing table
c. ARP table
d. URL table
Answer: b. Routing tableinterviewbit
If a client can reach its local gateway but not a remote subnet, what should be checked next?
a. ARP cache
b. Security patches
c. Gateway’s route to remote subnet
d. Client’s user permissions
Answer: c. Gateway’s route to remote subnetinterviewbit
What tool helps determine if a name-to-IP resolution error affects remote subnet communication?
a. ping
b. nslookup
c. ipconfig
d. traceroute
Answer: b. nslookupinterviewbit
Which network layer is mainly responsible when devices cannot reach remote subnets?
a. Data link
b. Network
c. Transport
d. Application
Answer: b. Networktestbook
Blocking ICMP packets at a firewall can result in what connectivity symptom?
a. Unable to ping remote subnets
b. Disk read errors
c. High CPU temperature
d. Long login times
Answer: a. Unable to ping remote subnetsinterviewbit
Which component of a TCP/IP stack is essential for subnet-to-subnet routing?
a. IP protocol
b. DHCP
c. FTP
d. ARP
Answer: a. IP protocolinterviewbit
What is a typical symptom of a misconfigured static route?
a. No connectivity to specific remote subnets
b. Slow internet speed
c. Application crashes
d. Device overheating
Answer: a. No connectivity to specific remote subnetsinterviewbit
Which virtual device enables traffic between subnets in a virtualized server environment?
a. vNIC
b. vSwitch
c. vFirewall
d. vDisk
Answer: b. vSwitchaticleworld
Which address must be correctly defined for a server to communicate outside its own subnet?
a. Loopback address
b. Default gateway address
c. Multicast address
d. MAC address
Answer: b. Default gateway addressinterviewbit
Remote subnet inaccessibility may result from which kind of address resolution failure?
a. DNS
b. ARP
c. DHCP
d. SMTP
Answer: b. ARPinterviewbit
What firewall setting can cause inability to reach remote subnets?
a. Blocking outbound ICMP
b. Allowing HTTP
c. Allowing FTP
d. Permitting DNS traffic
Answer: a. Blocking outbound ICMPinterviewbit
In a Windows server, which command shows all active routes?
a. route print
b. netstat -a
c. ipconfig /all
d. tracert
Answer: a. route printaticleworld
If subnet A can ping subnet B but not access shared folders, the likely problem is at which layer?
a. Physical
b. Application
c. Network
d. Data Link
Answer: b. Applicationtestbook
Improper subnetting can produce what network error?
a. Inability to communicate with remote subnets
b. Slow web browsing
c. Printer malfunctions
d. High disk usage
Answer: a. Inability to communicate with remote subnetssanfoundry
What kind of routing protocol automatically updates routing tables between routers?
a. Static routing
b. Dynamic routing
c. Manual routing
d. Direct routing
Answer: b. Dynamic routinginterviewbit
What is indicated if ‘tracert’ fails beyond the local gateway?
a. Routing problem in remote network
b. Faulty NIC card
c. Disk error
d. Software bug
Answer: a. Routing problem in remote networkinterviewbit
Which network configuration setting on a host must match its subnet?
a. Subnet mask
b. DNS server address
c. Hostname
d. Administrator password
Answer: a. Subnet maskinterviewbit
Which protocol’s failure may cause server-to-server communication breakdown across subnets?
a. SMTP
b. IP
c. SMB
d. HTTP
Answer: b. IPinterviewbit
What can prevent a server from reaching a remote subnet even with correct IP configuration?
a. Route missing in gateway
b. System time mismatch
c. Disk fragmentation
d. Outdated web browser
Answer: a. Route missing in gatewayinterviewbit
If a remote subnet is unreachable, which log can provide troubleshooting clues?
a. System event log
b. Routing protocol log
c. DNS query log
d. Print spooler log
Answer: b. Routing protocol loginterviewbit
Which of the following can cause remote subnet issues in a virtualized data center?
a. vSwitch misconfiguration
b. API rate limits
c. VM image corruption
d. Print queue overflow
Answer: a. vSwitch misconfigurationaticleworld
What does an ‘unreachable’ response from the ping command indicate?
a. No route to remote subnet
b. Firewall rule mismatch
c. Hardware overheating
d. DNS poisoning
Answer: a. No route to remote subnetinterviewbit
What network problem can dynamic host configuration address?
a. Automatic IP assignment across subnets
b. Faster disk access
c. Lower CPU load
d. Larger file capacity
Answer: a. Automatic IP assignment across subnetssanfoundry
Subnet mask mismatch can cause which result?
a. Unable to reach remote subnets
b. Print job failure
c. Email rejection
d. Application crash
Answer: a. Unable to reach remote subnetsinterviewbit
Which is a correct diagnostic step when remote subnet connectivity fails?
a. Check ARP entries
b. Confirm routing table entries
c. Test with alternate browser
d. Clear event logs
Answer: b. Confirm routing table entriesinterviewbit
How can NAT (Network Address Translation) affect subnet connectivity?
a. Prevents direct IP routing to remote subnets
b. Lowers disk write speeds
c. Increases system RAM use
d. Enables printer sharing
Answer: a. Prevents direct IP routing to remote subnetsinterviewbit
Which protocol is key for multi-subnet routing in IPv4 networks?
a. TCP
b. IP
c. SSH
d. FTP
Answer: b. IPinterviewbit
Which of the following can disrupt communication between subnets in a corporate network?
a. ACL (Access Control List) misconfiguration
b. Low battery voltage
c. High disk temperature
d. Service downtime
Answer: a. ACL (Access Control List) misconfigurationinterviewbit
What solution can fix remote subnet reachability tied to IP address duplication?
a. Reconfigure DHCP scope
b. Clear browser cache
c. Delete temp files
d. Lower CPU frequency
Answer: a. Reconfigure DHCP scopesanfoundry
Physical cabling issues will most likely affect which aspect when remote subnets are unreachable?
a. Entire network connectivity
b. Single application access
c. Only email delivery
d. Only web browsing
Answer: a. Entire network connectivityinterviewbit
Which TCP/IP model layer is checked last when remote subnet reachability fails?
a. Application
b. Physical
c. Network
d. Data Link
Answer: a. Applicationtestbook
A remote subnet unreachable message from a router often means what?
a. Destination route missing
b. Incorrect MAC address
c. Power supply fault
d. Drive not mounted
Answer: a. Destination route missinginterviewbit
What does the “network is unreachable” error typically mean?
a. No valid route exists to the destination subnet
b. Printer is not online
c. DNS service is down
d. Bluetooth is disabled
Answer: a. No valid route exists to the destination subnetinterviewbit
Which troubleshooting command can verify local interface status?
a. ipconfig
b. tracert
c. nslookup
d. route add
Answer: a. ipconfiginterviewbit
Remote subnet reachability problems in cloud servers are often traced to what?
a. Security group rules
b. Faulty graphics card
c. Unlicensed software
d. Low hard disk space
Answer: a. Security group rulesinterviewbit
Which function does the ‘route’ utility serve in troubleshooting subnet issues?
a. Displays and modifies routing tables
b. Tests CPU performance
c. Schedules system reboots
d. Diagnoses disk speed
Answer: a. Displays and modifies routing tablesaticleworld
What can firewall rules blocking specific protocols result in?
a. Unable to reach remote subnets
b. Graphics rendering errors
c. Slow disk formatting
d. CPU bottlenecks
Answer: a. Unable to reach remote subnetsinterviewbit
If remote subnet reachability fails across multiple hosts, what network device should be checked first?
a. Router
b. Switch
c. Workstation
d. Printer
Answer: a. Routerinterviewbit

Blog

Systemethic Technologies

Leave a Reply Cancel reply

Useful links

Other Terms & Policies

Contact Info