Networking Essentials and Troubleshooting Techniques Quiz

arp (Address Resolution Protocol) is used to map an IP address to a MAC address in a local network. The ARP command can be used to list the destination MAC addresses.

CAT3 cables have a maximum cable run length that is shorter compared to Singlemode fiber, Coaxial, and Plenum cables.

T568A/B is the most commonly used pinout configuration for RJ45 connectors as it is a standard set by TIA/EIA used for Ethernet and other network cables. UTP, IEEE 802.5, and STP are not pinout configurations commonly associated with RJ45 connectors.

The correct answer, D. 192.168.0.0 /22, is the appropriate summary address that encompasses all the given IP ranges without including any additional ranges. The /22 subnet mask covers from 192.168.0.0 to 192.168.3.0, ensuring accurate summarization.

Layer two switches operate at the data link layer of the OSI model and are responsible for forwarding data based on MAC addresses. VLAN settings, which allow for logical segmentation of a network, are a common feature found in layer two switches. SSID settings, routing protocols, and DNS zones are typically associated with routers or layer three switches, which operate at the network layer.

The correct answer is 10GBaseT because it is a cable type that transmits data at a speed exceeding 100Mbps per direction. 100BaseTX, 10BaseT, and 100BaseT are all cable types that transmit data at speeds below 100Mbps per direction.

The most likely problem in this scenario is a defective CAT5 cable, as it is responsible for transmitting data between the client computer and the network. The other options, such as a disabled NIC in BIOS or Device Manager, or a defective RJ11 jack, would not prevent the computer from accessing the network if the cable is working properly.

Cordless phones operate on the same frequency as many wireless networks, which can cause interference and dropoffs in the connection.

Cordless phones operate on the same frequency band as wireless G networks, potentially causing interference and resulting in a dropoff in the wireless connection.

POP3 uses port 110 by default for communication.

An IP address starting with '169.254' indicates that the workstation has automatically configured an APIPA (Automatic Private IP Addressing) address because it could not obtain an IP address from a DHCP server.

A tone generator is specifically designed to locate and trace wires within walls by producing a tone on the wire, making it easier to identify. Media testers, continuity testers, and multimeters are not typically used for this purpose.

IMAP4 is the correct protocol that allows users to view emails while keeping them stored on the email server. SMTP is used for sending emails, SSL is a security protocol, and POP3 is a protocol that downloads emails to a local device.

CIDR notation combines the network address and the number of significant bits in the subnet mask. In this case, the subnet mask 255.255.255.0 uses 24 bits for the network portion, making the correct answer A. 220.100.100.100 /24.

Creating a new subnet for this system is the most appropriate way to segregate network traffic to ensure security and isolation. Implementing a dedicated broadcast network or multicast network would not effectively address the security concerns. Changing the IP scheme to class C addresses would not provide the necessary isolation and segmentation required for the new sales system.

Configuring traffic shaping to reduce the bandwidth available to the file sharing application would help improve voice quality by prioritizing voice traffic over data traffic.

A DNS server uses pointer records (PTR) to map IP addresses to hostnames and A records to map hostnames to IP addresses. NAT server (A) primarily performs network address translation, IPS (B) refers to Intrusion Prevention System, and IDS (D) refers to Intrusion Detection System, which do not directly manipulate DNS records.

In a situation where DNS services are in a failed state, creating a local host file on the PC allows users to bypass the DNS resolution process and access specific services using Fully Qualified Domain Names.

A Network Interface Card (NIC) is responsible for connecting a computer to a network, but it does not segregate collision domains or broadcasting domains. Hubs also do not segregate collision domains. Routers are used for routing traffic between different networks, not for segregating collision domains.

The cordless phones operating at 2.4Ghz can interfere with the wireless connection on laptops, causing disconnections when the phone rings.

After upgrading the firmware on all switches within the LAN, the network administrator would need to update the baseline and configuration documentation to reflect the changes made to the switches' firmware. The wiring schematics, logical network diagram, and physical network diagram would not necessarily need to be updated for firmware upgrades.

Installing two NICs for teaming provides fault tolerance by allowing for network traffic to be distributed across both NICs, providing redundancy in case one NIC fails. This solution is cost effective compared to installing two switches, a single fiber NIC, or a single router.

In troubleshooting, it is essential to first identify the symptoms of the issue before proceeding with any other steps. This helps in determining the root cause of the problem and narrowing down the potential solutions.

Cordless phones operate on similar frequencies as wireless networks and can cause interference leading to disrupted connections.

The most likely source of the problem is the intranet server being down, which would prevent users from accessing the internal company website. The other options provided are less likely to be the source of the issue.

In this scenario, the most likely cause of network instability and other issues after deploying new servers is temperature-related. When additional servers are added to a rack, the overall thermal load increases, potentially causing overheating and leading to network instability. Checking the temperature monitor would help identify if this is the issue.