Unlock hundreds more features
Save your Quiz to the Dashboard
View and Export Results
Use AI to Create Quizzes and Analyse Results

OR
Sign inSign in with Facebook
Sign inSign in with Google
Quizzes > Quizzes for Business > Technology

Network Configuration and Troubleshooting Knowledge Test

Assess your network setup and troubleshooting skills

Difficulty: Moderate
Questions: 20
Learning OutcomesStudy Material
Colorful paper art illustrating a quiz on Network Configuration and Troubleshooting Knowledge Test.

Looking to master network configuration and troubleshooting? This knowledge test features 15 multiple-choice questions designed to challenge your understanding of protocols, routing, and problem-solving techniques. It's perfect for IT students, network administrators, and tech enthusiasts aiming to sharpen their skills. Try out the Network Fundamentals Quiz for foundational practice, or explore the IT Troubleshooting Quiz to deepen your diagnostic abilities. Don't forget you can easily adapt any question in our quizzes editor to suit your learning goals.

A host is configured with IP 192.168.1.10/24 and a default gateway of 192.168.2.1. The host cannot reach external networks. What is the most likely misconfiguration?
The default gateway is in a different subnet
The host has a duplicate IP address
The DNS server address is incorrect
The subnet mask should be /16 instead of /24
The default gateway must reside in the same IP subnet as the host. Since 192.168.2.1 is outside the 192.168.1.0/24 network, the host cannot ARP for it or send packets to external networks.
Which type of Ethernet cable is commonly used to connect a workstation to a switch port?
Console cable
Straight-through cable
Crossover cable
Rollover cable
A straight-through cable is used to connect end devices like PCs to switch ports. Crossover cables are used for switch-to-switch or PC-to-PC connections, and rollover cables are for console access.
At which OSI layer does logical addressing and routing occur?
Transport layer
Data Link layer
Network layer
Physical layer
The Network layer (Layer 3) is responsible for logical addressing and making forwarding decisions via routing. It uses protocols like IP to deliver packets between subnets.
What is the valid VLAN ID range on most Cisco switches that support 802.1Q trunking?
0 - 255
1 - 1005
2 - 2000
1 - 4094
Cisco switches support VLAN IDs from 1 to 4094 under the IEEE 802.1Q standard. Although VLANs 1002 - 1005 are reserved for legacy protocols, the full range is 1 - 4094.
Which subnet mask corresponds to a /26 prefix length?
255.255.255.224
255.255.255.128
255.255.255.0
255.255.255.192
A /26 prefix length means there are 26 bits of network portion, leaving 6 bits for hosts. This corresponds to a subnet mask of 255.255.255.192.
What parameter determines the root bridge election in Spanning Tree Protocol?
Lowest bridge ID
Highest port priority
Highest MAC address
Lowest port ID
STP elects the root bridge based on the lowest bridge ID, which is a combination of bridge priority and MAC address. Lower numeric values win the election.
On an IEEE 802.1Q trunk, which VLAN is by default transmitted without a tag?
All VLANs are tagged by default
VLAN 1
Native VLAN
Management VLAN
The native VLAN on an 802.1Q trunk is transmitted untagged by default. By default, VLAN 1 is the native VLAN unless changed in the switch configuration.
Which feature allows hosts on separate VLANs to communicate with each other?
VLAN trunking on host NIC
Disabling Spanning Tree Protocol
Access port configuration
Inter-VLAN routing
Inter-VLAN routing enables traffic to be routed between VLANs using a Layer 3 device like a router or a Layer 3 switch. Without routing, VLANs remain isolated at Layer 2.
If a Cisco access control list has no matching permit statements for a packet, what is the outcome?
The packet is sent to a backup interface
The packet is forwarded by default
The packet is dropped due to an implicit deny
The packet is logged and then forwarded
Cisco ACLs include an implicit 'deny all' statement at the end of the list. Any packet that does not match a permit entry is automatically dropped.
OSPF neighbors are stuck in the '2-way' state. Which configuration mismatch can cause this?
Mismatched hello and dead timers
Identical area IDs
Same IP addresses on interfaces
Different router IDs
OSPF routers must have matching hello and dead timers to progress past the 2-way state. If these timers differ, they will see each other but not form a full adjacency.
In HSRP, which router becomes the active router by default if priorities are equal?
The router with the highest IP address
The router with the lowest MAC address
The first router to boot
The router with the most interfaces
When HSRP priorities are equal, the router with the highest IP address on the HSRP interface takes the active role. Priority ties are broken by IP address value.
A host on VLAN 10 cannot communicate because its switchport is configured as access VLAN 20. What is the root cause?
Spanning Tree Loop Prevention
Faulty network cable
Wrong IP address on the host
Switchport VLAN assignment mismatch
If the switchport is assigned to a different VLAN than the host's IP network, frames are isolated and cannot reach the correct VLAN. The VLAN mismatch on the access port prevents communication.
Which Cisco IOS command sets the gateway of last resort for all unknown routes?
ip route 0.0.0.0 0.0.0.0
ip default-gateway
ipv6 route ::/0
router ospf default-information originate
The command 'ip route 0.0.0.0 0.0.0.0 ' creates a default static route used for any destination not in the routing table. This sets the gateway of last resort.
What is the primary difference between an access port and a trunk port on a switch?
Trunk ports can only connect to wireless access points
Access ports use 802.1Q tagging, and trunk ports do not
An access port carries traffic for one VLAN, while a trunk port carries multiple VLANs
Access ports require spanning tree to be disabled
Access ports handle untagged traffic for a single VLAN, converting it to a specific VLAN ID internally. Trunk ports carry tagged frames for multiple VLANs across a single link.
In Network Address Translation using Port Address Translation (PAT), how are multiple internal hosts distinguished when sharing a single public IP?
By assigning different MAC addresses on the outside interface
By encapsulating packets in GRE tunnels
By using different IP ID fields
By using unique source port numbers
PAT maps multiple private IP addresses to a single public IP by tracking unique source port numbers for each session. This allows the router to demultiplex return traffic correctly.
What issue arises when two networks on adjacent routers are configured as 192.168.1.0/24 and 192.168.1.0/25?
Supernetting is required to summarize the routes
Networks are discontiguous, causing asymmetric routing
VLSM cannot be used across routers
Overlapping subnets prevent proper routing
The /25 network is a subset of the /24 network, causing an overlap that routing protocols will not route properly. Overlapping subnets create ambiguity in routing decisions.
When redistributing OSPF routes into EIGRP, what must be manually configured to ensure the routes are advertised?
A route map tag for OSPF
Automatic metric translation
OSPF cost for external LSAs
A seed metric for EIGRP
EIGRP requires a manually configured seed metric for routes imported from a different protocol. Without this metric, EIGRP will not advertise the redistributed routes.
For an iBGP session established over loopback interfaces, which configuration is required on each router?
Use the 'neighbor X.X.X.X update-source loopback' command
Enable route reflection on the ABR
Configure 'ebgp-multihop' to allow loopback neighbors
Assign the same router ID to both routers
When forming iBGP neighbors using loopback interfaces, the update-source command ensures that the source IP of the BGP session matches the loopback address. Without this, the neighbor check will fail.
A deny statement in a Cisco ACL is not logging any matches. What is the most likely reason?
The ACL is applied in the outbound direction only
The 'log' keyword was not added to the deny statement
Cisco ACLs do not support logging for deny statements
The implicit deny at the end overrides explicit denies
In Cisco IOS ACLs, you must include the 'log' keyword on a deny statement to record matches. Without it, denied packets are dropped silently and not logged.
A BGP router receives two paths to the same prefix from the same neighbor AS, with MED values 50 and 100. Which path will be preferred?
The path with the highest AS path length
The path with MED 100
The path with MED 50
The path with the higher next-hop IP address
BGP selects the route with the lowest MED value when comparing paths from the same neighboring AS. A lower MED indicates a more preferred external path.
0
{"name":"A host is configured with IP 192.168.1.10\/24 and a default gateway of 192.168.2.1. The host cannot reach external networks. What is the most likely misconfiguration?", "url":"https://www.quiz-maker.com/QPREVIEW","txt":"A host is configured with IP 192.168.1.10\/24 and a default gateway of 192.168.2.1. The host cannot reach external networks. What is the most likely misconfiguration?, Which type of Ethernet cable is commonly used to connect a workstation to a switch port?, At which OSI layer does logical addressing and routing occur?","img":"https://www.quiz-maker.com/3012/images/ogquiz.png"}

Learning Outcomes

  1. Analyse network topology for common misconfigurations
  2. Identify VLAN and subnetting issues
  3. Apply systematic troubleshooting methods to diagnose connectivity problems
  4. Demonstrate correct router and switch configuration techniques
  5. Evaluate firewall rules and access control configurations
  6. Master routing protocol issue resolution strategies

Cheat Sheet

  1. Understand Common Network Topologies - Dive into star, bus, ring, and mesh layouts to uncover each design's superpowers and sneaky weaknesses - like a star's central hub being a lone drama queen that can bring the whole network down. Recognizing these patterns will make troubleshooting feel like a breeze. Explore topologies
  2. Master VLAN Configuration - Slice and dice your network into secure, high-speed segments with VLANs, preventing traffic chaos and eavesdropping villains. Keep assignments consistent across switches to avoid the dreaded "VLAN mismatch" catastrophe. Master VLANs
  3. Grasp Subnetting Concepts - Crack the code of subnet masks and CIDR notation so you can divvy up IP addresses like a pro. Knowing that a /24 gives you 256 addresses feels like unlocking a hidden level in your favorite game. Brush up on subnetting
  4. Apply Systematic Troubleshooting Methods - Channel your inner detective by following the OSI model from the physical layer up to the application layer. Step-by-step sleuthing helps you isolate issues faster than you can say "ping." Troubleshoot like a pro
  5. Configure Routers and Switches Correctly - Get hands-on with interface setups, routing protocols, and security tweaks to transform devices into rock-solid network pillars. Always back up configs and update firmware to dodge nasty surprises. Configure devices
  6. Evaluate Firewall Rules and Access Controls - Arm yourself with the knowledge to craft killer ACLs and firewall rules that welcome friends and block foes. Regular audits keep your defenses razor-sharp and ready for anything. Harden your firewall
  7. Resolve Routing Protocol Issues - Level up by studying OSPF, EIGRP, and BGP, ensuring area IDs and network statements play nice together. Solid protocol skills mean data finds the fast lane every time. Troubleshoot routing
  8. Implement Network Security Best Practices - Fortify devices with strong passwords, disable unused services, and roll out regular firmware updates to keep cyber baddies at bay. Remember, a locked-down network is a happy network. Secure your network
  9. Monitor Network Performance - Keep your finger on the pulse of traffic patterns, bandwidth hogs, and sneaky bottlenecks with top-notch monitoring tools. Proactive checks are your secret weapon to prevent meltdowns. Monitor performance
  10. Stay Updated with Networking Trends - Ride the wave of SDN, network automation, and other breakthrough tech to stay ahead of the curve. Continuous learning is your golden ticket to networking mastery. Discover new trends
Make a Quiz (FREE) Copy & Edit This Quiz Create a Quiz with AI

Technology Quizzes

Powered by: Quiz Maker