This practice exam covers basic computer networking, to include the installation and configuration of networks, media types, configuration types, and network security. Passing this exam will require knowledge in the Ethernet Protocol, IPv4, and some IPv6, MAC addressing, TCP/UDP, the OSI Layer, and various other protocols such as SNMP, SSH, FTP, SSL/TLS, and more.
The arp command display and modifies entries in the Address Resolution Protocol (ARP) table, which contains IP and MAC Addresses.
This question is filed under objective 4, Troubleshooting
Out-of-band management is the use of a trusted, dedicated management channel for accessing a network device. This data is transmitted separately from in-band data such as network traffic.
This question is filed under objective 2, Network operations
Network Mapper (NMAP) is a security scanner used to discover hosts and services on a computer network.
This question is filed under objective 2, Network operations
Spanning Tree Protocol (STP) is used on network switches to disable duplicate routes until needed. Without STP, these duplicate routes will result in loops in network traffic.
This question is filed under objective 1, Network Architecture
TACACS+ is an open standard protocol developed by Cisco that is used to authenticate users across a network.
This question is filed under objective 5, Industry standards, practices, and network theory
Syslog is a standardized computer message logging technology, which can be used on many operating systems such as Windows and Linux.
This question is filed under objective 5, Industry standards, practices, and network theory
Enabling port mirroring on a network device, usually a switch, will duplicate all network traffic out a single network port so a packet sniffer may then record the traffic.
This question is filed under objective 1, Network Architecture
The Transport layer, or layer 4, of the OSI model is located between the Network and Session layers.
This question is filed under objective 5, Industry standards, practices, and network theory
The Internet Control Message Protocol (ICMP) is used to control IP networks. It is used for error reporting, network congestion, and availability.
This question is filed under objective 5, Industry standards, practices, and network theory
The interface in this situation is a WAN interface. The only option here that is a WAN interface is Serial 0/0/0. Fast Ethernet is a similar option, but is typically used for LAN communications.
This question is filed under objective 4, Troubleshooting
A switch operates at level 2 of the OSI model, and forwards network traffic based of MAC Addresses.
This question is filed under objective 5, Industry standards, practices, and network theory
In IPv6, link local addresses belong to the FE80::/10 address block. Link local is the IPv6 equivalent of IPv4's private addressing.
This question is filed under objective 1, Network Architecture
Power over Ethernet (PoE) is a technology that passes electrical power along with data on an Ethernet cable, thus providing power to the distant network device.
This question is filed under objective 1, Network Architecture
802.11a uses the 5 GHz frequency range, and is a good alternative when the 2.4 GHz range is unusable.
This question is filed under objective 1, Network Architecture
In IPv4 addressing the 10.0.0.0 - 10.255.255.255 range is the private IP range for Class A addresses.
This question is filed under objective 1, Network Architecture
Tracert (traceroute) is a diagnostic tool that will display the route and measure transmit times between network devices.
This question is filed under objective 4, Troubleshooting
The ifconfig command is used in Unix-like operating systems to display and configure TCP/IP network interface parameteres.
This question is filed under objective 4, Troubleshooting
The TCP protocol operates on layer 4, the Transport layer of the OSI model.
This question is filed under objective 5, Industry standards, practices, and network theory
A packet sniffer will record network traffic onto a storage device for later review. This will allow you to save and analyze the employees network traffic.
This question is filed under objective 3, Network security
Because the router is new, it is likely that the new customer's router has not yet updated it's route table and that would be the best place to look.
This question is filed under objective 4, Troubleshooting
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