Networking Essentials – Version C LE Practice Test

These questions are part of the practice quiz. Start practicing

• Which protocol is commonly used for secure communication over a computer network?
• Which layer of the OSI model is responsible for data encryption?
• What does the show ip route command display?
• What task does the command "Router(config-line)#" typically allow you to perform?
• Which of the following indicates a switch can be managed remotely?
• What is the function of a router in a network?
• Which type of device filtering can be enabled on some wireless access points or wireless routers?
• What command should be used to enable a local username for SSH access?
• After an office move, what is the first thing to check if workstations cannot get a valid IP address?
• In software-defined networking, what function is performed by an SDN controller?
• Which statement is true regarding remote management of a switch?
• What kind of network uses a point-to-point connection?
• What type of attack occurs when an intruder guesses a password through rapid attempts, locking out legitimate users?
• What is the significance of having one device attached to a physical interface on a switch?
• What is the purpose of a DHCPOFFER message?
• What is the main function of port forwarding in a firewall?
• What would happen if a DHCP server fails to respond to a DHCPDISCOVER message?
• What must be done to allow remote access to a device via SSH?
• What is the primary function of a router in networking?
• Which piece of information is NOT typically included in the output of the show ip interface brief command?
• What does WAN stand for?
• Which two devices are considered end devices?
• What does an exhibit typically show in a networking context?
• Which two files, if found, are copied into RAM as a router with the default configuration register setting boots up?
• What is a VPN used for?
• Which device typically connects a local network to the internet?
• What is an IP address?
• In the context of router performance, what does the command show ip route offer to an administrator?
• What device would be critical for linking multiple home devices to the internet wirelessly?
• What does IP stand for in networking?
• What is a key feature of virtualization in networking environments?
• Which layer of the TCP/IP model is directly responsible for end-to-end communication?
• Which statement can be inferred from the output of the show ip interface brief command?
• When a client laptop connects to a network using dynamic addressing, which IP address does it use to request an address?
• What is a unique characteristic of a connection established via SSH to a switch?
• What is a security vulnerability associated with SSID broadcasting?
• What does BGP stand for?
• What does the show ip interface brief command help an administrator identify?
• What does the term "throughput" refer to in a network context?
• What are the four main functions of network protocols?
• What protocol is used for sending emails?
• What are three common types of network services?
• What is a VPN primarily used for?
• What is a characteristic of a valid public IPv4 or IPv6 address?
• What does VPN stand for?
• Which command provides security on the console of a router?
• What is the purpose of encapsulation in networking?
• What is the primary purpose of a network?
• What is Crossover cable used for?
• Which protocol is commonly used for secure data transmission over the internet?
• Which layer of the OSI model is responsible for establishing, managing, and terminating connections?
• What does QoS stand for, and why is it important?
• What is the main function of a firewall in a network?
• When a consumer pays at a store terminal by simply placing their smartphone near it, which technology is being used?
• Which type of network topology features a central hub connected to all nodes?
• What does the output of the show ip interface brief command NOT include?
• What type of IP address begins with 10.0.0.0?
• Which of the following devices is commonly used to connect multiple devices on a local area network (LAN)?
• Which of the following are common classes of IP addresses?
• What is the purpose of the ARP protocol?
• Which type of access is secured using the enable secret command on a Cisco device?
• What are the implications of IPv4 address exhaustion?
• While a network security product is being deployed, which three protocols should be allowed for email use on a network?
• What is a characteristic of a static IP address?
• Which layer of the OSI model is responsible for routing and forwarding data packets?
• What does a DHCPACK message signify in a DHCP transaction?
• Which layer of the OSI model is responsible for data encryption and decryption?
• Which of the following best describes TCP?
• What is the primary function of the network interface layer in the TCP/IP model?
• What does LAN stand for?
• At the prompt "RouterA(config-line)#", what configuration task can a network administrator perform?
• At which layer does a network device that interconnects independent local networks operate?
• Which protocol provides remote access to servers?
• What can be done when wireless devices in an office setting are unable to connect after being relocated?
• Which protocol resolves internet names to IP addresses?
• What type of network topology connects all devices to a single central cable?
• What type of device is necessary to establish a home wireless network and provide internet access to multiple devices?
• What type of malware gathers personal information about a user without their permission or knowledge?
• What is a significant advantage of using standards in protocol development?
• Which command provides a summary view of all interfaces regardless of their status?
• What is the maximum number of hosts that can be accommodated in a Class A network?
• Which two criteria are essential in selecting a network medium?
• Which benefit does UDP offer compared to TCP?
• What is an advantage of a wireless network?
• Which action aligns with entering "Router(config-if)#" in command-line interface?
• In what scenario does a wireless router perform Network Address Translation (NAT)?
• What is a mesh network topology?
• Which type of cable is commonly used for high-speed internet connections?
• What does NAT stand for in networking?
• In what scenario is a multicast transmission useful?
• What is the purpose of network redundancy?
• What is a benefit of configuring the default SVI on a switch?
• What types of attacks can firewalls help mitigate?
• What action should a user take to prevent neighbors from discovering their wireless network?
• What is traceroute used for?
• What security protocol is often used in VPNs?
• What type of technology converts analog voice signals into digital data?
• What is the default subnet mask for a Class C IP address?
• What is the effect of latency in a network?
• At which OSI model layer is a logical address added during the encapsulation process?
• What networking solution allows external users access only to an internal FTP server?
• Where would a network administrator typically find configuration information such as computer names and IP addresses?
• What are two benefits of using a layered network model?
• What is a common symptom of a workstation failure to receive a valid IP address after being moved?
• Which of the following attacks involves misleading individuals to reveal personal information?
• What is indicated by a down status in the output of the show ip interface brief command?
• What does the term "bandwidth" refer to?
• What should a technician do if they cannot identify the root cause of a customer's computer problem?
• A student is uploading files from a phone to a server on another network. Which layer of the TCP/IP model is responsible for addressing the data transmission?
• What are two features of protocols used within the TCP/IP protocol stack?
• What is the first step in establishing secure access to a switch remotely?
• What is the purpose of a gateway in networking?
• Which command is used to configure a name on the router?
• To what destination address will a host send an ARP request if the ARP cache has no mapping entries?
• If the default gateway is configured incorrectly, what is the effect on network communications?
• What does a proxy server do?
• What are the two main types of network topologies?
• In the command "Switch(config)# Interface FastEthernet 0/1", what term describes the "0/1" part?
• Which device is primarily responsible for directing data packets to specific destinations within a network?
• What is the primary purpose of a subnet mask in relation to an IP address?
• What command is used to display a message when a router is accessed?
• What type of protocol is FTP?
• What is a consequence of turning off SSID broadcasting?
• Which type of address is assigned to devices in a network using DHCP?
• In which scenario would the need for DHCP be most critical?
• What action does a DHCPREQUEST message represent?
• How can user authentication improve network security?
• What does the router prompt "RouterA#" indicate?
• What does an intrusion detection system (IDS) do?
• What is the primary purpose of a firewall?
• Which OSI model layer is primarily responsible for end-to-end communications?
• Which of the following are two common media used in networks?
• What is the primary function of a DHCP server in a network?
• What is the role of DNS in networking?
• Which statement is true regarding MAC addresses?
• What does DHCP stand for, and what is its purpose?
• In a network using WEP security, what is a common consequence?
• What is the effect of setting a wireless router's security mode to WEP?
• What is a VLAN?
• After the IOS loads from flash, what is the next step in the switch boot sequence using default settings?
• What is the function of a firewall in a network?
• What function does DHCP perform in a network?
• How can the success of configuration changes be checked from the command line interface?
• What do tracking cookies allow when visiting websites?
• What is a subnet mask used for in networking?
• What is the impact if the default gateway is misconfigured on a host?
• What feature enables devices in the same network segment to communicate with each other using IP addresses?
• What is the role of DHCP in a network?
• Name a common method used for network security authentication.
• Which factor does not influence throughput?
• What is the primary purpose of network documentation?
• Which two types of interference may affect the data throughput on UTP cables?
• Which RF band do IEEE 802.11b/g wireless devices operate in?
• What is the main goal of network performance monitoring?
• Which protocol is used for file transfer over the Internet?
• Which migration technique encapsulates IPv6 packets inside IPv4 packets for transport over IPv4 networks?
• How does a hub differ from a switch?
• What is a primary function of a router in a network?
• How will a computer send a packet to a destination host on the same LAN?
• Which device is used to connect multiple network segments?
• What is the role of SNMP in network management?
• What is indicated by a DHCPDISCOVER message?
• A DHCP server assigns IP addresses from a pool. If the pool is 192.168.10.0/24 with 3 printers using static IPs, how many addresses remain for other hosts?
• What type of cable is commonly used for high-speed data transmission in networks?
• Which malware is specifically designed to track user data and browsing habits?
• What is a characteristic of a peer-to-peer application?
• How does a client device obtain an IP address from a DHCP server on the network?
• What does IEEE stand for?
• What are pop-ups primarily associated with in the context of web browsing?
• What is the significance of an IPv6 address having a long format?
• How does an attacker perform a phishing attack?
• When troubleshooting at Layer 3 of the OSI model, which question is relevant to checking communication with the default gateway?
• What is the primary role of network protocols?
• What characteristic defines a broadcast domain?
• What role does encapsulation play in networking?
• What role do network adapters play in networking?
• What is an SSID?
• What does DHCP stand for and what is its purpose?
• What process is used to connect different network types, including IPv4 and IPv6?
• What networking trend is indicated by a data center hosting multiple operating systems on a single CPU?
• What does QoS stand for in networking, and why is it important?
• Which statement correctly describes data transmission at the transport layer?
• Which command should an administrator use to view the path a router will take to remote networks?
• Which command can be used to check the reachability of the default gateway from a workstation?
• What does NAT stand for?
• What does the prompt "RouterA(config)#" signify?
• What are two wiring schemes defined by the TIA/EIA organization for Ethernet installation?
• What type of packet delivery occurs within the same LAN?
• What is a subnet mask used for?
• What conclusion can be drawn if the default SVI has not been configured on a switch?
• What is indicated by the prompt "RouterA(config-if)#"?
• Which of the following is a benefit of a network?
• Which type of address does a switch use to build the MAC address table?