Networking Essentials – Version A LE Practice Exam

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• What are the benefits of using fiber optic cables?
• What type of network is characterized by a shared communication medium?
• What would you find in a switch's MAC address table?
• What is the primary function of an ISP?
• When configuring SSH on a router, which command is used to generate asymmetric RSA keys?
• What does the acronym WLAN stand for?
• Identify one key difference between TCP and UDP.
• Which type of wireless communication is based on the 802.11 standards?
• What is the purpose of the dynamic addressing provided by a wireless router?
• Which of the following best describes application layer filtering?
• What does a DHCPACK message indicate?
• What does the acronym VPN stand for?
• What initiates a DHCPDISCOVER message?
• In IPv4 addressing, what is the purpose of a private address range?
• What is the primary purpose of a MAC address?
• Which layer of the OSI model is responsible for session management?
• What is a firewall?
• Which of the following is a characteristic of a Class C IP address?
• What is the primary function of the data link layer in the OSI model?
• What does the acronym IP represent in networking?
• What is the difference between TCP and UDP?
• What is the primary function of ICMP in networking?
• What message does a DHCP server send to inform a client that its address lease has been accepted?
• In which mode does an admin enter configuration commands after accessing a switch console port?
• What does the acronym BYOD stand for?
• What does the term “VPN tunneling” refer to?
• What is the primary goal of a troubleshooting methodology in networking?
• What is a VLAN?
• Which of the following best describes a collision domain?
• In the command Switch(config)# Interface FastEthernet 0/1, what does "0/1" represent?
• What is the function of a switch in a network?
• Which device is associated with Layer 2 of the OSI model?
• What does SSID stand for in networking?
• What is the purpose of translation in IPv4 and IPv6 networks?
• What is the purpose of a demilitarized zone (DMZ) in a network?
• What does bandwidth throttling mean?
• What does the term 'bandwidth' refer to?
• If you have a prefix length of /19, what is your custom subnet mask?
• How does a distributed denial-of-service (DDoS) attack operate?
• What is NAT, in networking?
• Which device type plays a critical role in forwarding data only to the specified device?
• What type of network protocol is ICMP classified as?
• What is the decimal equivalent of the hexadecimal number 0x2DF?
• What role does a modem play in networking?
• What command displays a message when the router is accessed?
• What does DHCP stand for?
• What is meant by the term “collision domain”?
• What is the maximum length of a standard Ethernet frame?
• What type of network topology connects all devices to a single central hub?
• What is the custom subnet mask for a prefix length of /20?
• Which of the following is NOT typically a feature of a firewall?
• When powered on, where does a router first search for a valid IOS image by default?
• What is encompassed by the 802.11 standards?
• What is a key advantage of using standards in protocol development?
• What network device operates at the data link layer of the OSI model?
• Which of the following is a type of network architecture?
• What is a key benefit of using a Virtual Private Network (VPN)?
• What is the purpose of NAT in networking?
• What type of cable is commonly used to connect devices in a network?
• What is the subnet ID of the network 192.168.165.189 /26?
• Which of the following is true about MAC addresses?
• What is a requirement for devices to communicate over the internet?
• What is the function of a VPN concentrator?
• What is the purpose of an SSL certificate?
• What role does the application layer play in the OSI model?
• What role does DNS play in networking?
• Which type of access is protected by the enable secret command on a Cisco router or switch?
• Which layer of the OSI model does a MAC address operate at?
• What does the term "latency" refer to in networking?
• In networking terminology, what is a 'broadcast'?
• A router with a valid operating system contains a configuration file stored in NRAM. When the router boots up, which mode will display given that there is an enabled secret password but no console password?
• What does load balancing achieve in a network?
• Which type of configuration allows for a seamless transition from IPv4 to IPv6?
• What is the purpose of an IP address?
• What does the term "latency" refer to in networking?
• What is the default subnet mask for a Class C IP address?
• Which DHCP message type is sent by a client to locate a DHCP server?
• Which of the following IP addresses is NOT a private IP address?
• Why is a network diagram important?
• What is the function of NAT in networking?
• What is the function of a static route in networking?
• What protocol is commonly used for email retrieval?
• What does the acronym RADIUS stand for?
• What technology allows devices to communicate using both IPv4 and IPv6 addressing at the same time?
• What method is used to manage contention-based access on an 802.11n wireless network?
• When a newly purchased laptop connects to a local area network using DHCP, what destination address does it use to request a dynamically assigned address?
• What does VPN stand for?
• What is the purpose of sticky sessions in networking?
• What occurs during the network layer of the OSI model?
• What protocol is commonly used for secure internet communications?
• What protocol is used to secure data transmission over a network?
• Which of the following is an example of a network protocol?
• What is the final mode reached when configuring a switch console port with a password?
• What does DHCP stand for?
• What is the second mode an admin enters when configuring a switch console port?
• Why is network redundancy important?
• What does the acronym VoIP stand for?
• What does DNS stand for in the context of networking?
• Which layer of the OSI model is responsible for the physical transmission of data?
• What is the main function of a firewall in a network?
• What does SSL stand for and what is its use?
• What does the acronym QoS stand for and why is it important?
• What is the difference between a hub and a switch?
• Which type of attack involves overwhelming a network with traffic?
• What is multicast addressing in networking?
• What is the function of SNMP in network management?
• What is the purpose of a subnet mask in conjunction with an IP address?
• Which protocol is used for secure data transmission over the Internet?
• Which method allows both IPv4 packets and IPv6 packets to coexist in the same network?
• What is the primary function of a load balancer?
• How does PKI enhance cybersecurity?
• What is the primary role of the transport layer in the OSI model?
• What is the function of an IP subnet mask?
• What does the term “network segmentation” refer to?
• What role does the OSI model play in networking?
• What is the role of ICMP in networking?
• What is a proxy server primarily used for?
• What is the purpose of a network certificate?
• What does an intrusion detection system (IDS) do?
• What function does an endpoint serve in networking?
• What does the acronym Ethernet refer to?
• What role does a DHCP server play in a network?
• What type of network topology uses a central connection point?
• What does VLAN stand for?
• Which technology is used for wireless networking?
• What are the main components of a network diagram?
• Which three commands are needed to set up secure access to a router through a console interface? (Choose three)
• What is NAT primarily used for in networking?
• What does the term "ping" refer to in networking?
• What does the ARP table in a switch map together?
• What does network topology refer to?
• Define the term "bandwidth."
• What is network latency?
• What is wildcard masking used for?
• What is a firewall?
• What is the primary benefit of using a firewall in a network?
• What is the primary function of a firewall?
• What is a network switch?
• What is the role of network monitoring?
• Which of the following correctly describes a static IP address?
• What is the significance of network bandwidth monitoring?
• What is the primary function of DHCP in a network?
• What does tunneling refer to in the context of IPv6 and IPv4 coexistence?
• How many bits are there in each hextet of an IPv6 address?
• What is the purpose of a DHCPOFFER message?
• In a VPN, what is the main reason for securing data transmission?
• What role do routers play in a network?
• Which protocol is primarily used for establishing a secure communication channel over an insecure network?
• What is a routing table?
• Which well-known port number is associated with secure HTTP requests?
• What protocol is responsible for data transmission over the Internet?
• What is a MAC address?
• What command must be configured to set the IP domain name for SSH on a router?
• What does a host send as an ARP request when there are no mapping entries in its ARP cache?
• Which feature is typically associated with modern firewalls?
• What is a primary characteristic of VoIP?
• What does the acronym WISP stand for?
• Which protocol is commonly used for securely transferring files over a network?
• What is the purpose of DHCP reservations?
• What is the broadcast address for the network 192.168.100.200 with a subnet mask of 255.255.255.248?
• Which layer of the OSI model is responsible for end-to-end communication?
• Convert the decimal number 593 into hexadecimal.
• What is a beneficial outcome of having network redundancy?
• What is a subnet mask?
• What does the term throughput indicate in networking?
• Which two radio frequency bands are primarily used in home Wireless LANs?
• What is asynchronous transfer mode (ATM)?
• Which device is primarily used to connect multiple networks?
• What is the most compressed form of the IPv6 address 0678:0DF5:0000:CB34:0034:0000:0000:02B0?
• What does a network architecture define?
• What command is used to increase password security on a Cisco device?
• In network security, what does a digital certificate provide?
• What is the purpose of port forwarding?
• What action does a user need to take to prevent neighbors from discovering a wireless access point's network?
• What does a DHCPREQUEST message signify?
• Which command provides security on the console of a router?
• What is the primary purpose of SSL/TLS?
• What is the most compressed form of the IPv6 address 0090:FEA0:00DA:F4A8:008A:0000:0000:0000?
• What is the function of a network adapter?
• What is a subnet?
• Which command can be used to configure an encrypted password for privileged EXEC mode?
• What is a unique characteristic of an SSH connection to a switch?
• What does VoIP stand for and what is its primary function?
• What is a primary difference between a hub and a switch?
• Which type of address does a switch use to build a MAC address table?
• How is a "broadcast domain" defined?
• Why was the PC able to connect to the network without any additional configuration?
• A client device on an Ethernet segment needs an IP address. If a DHCP server with the IP address 192.168.1.1 is enabled, how will the client obtain a usable IP?
• Which command is NOT related to securing access to a router's console?
• What does public key infrastructure (PKI) manage?
• What is the main purpose of subnetting a network?
• What is the primary function of a network interface card (NIC)?
• What is the role of an access point in a network?
• Which of the following are the two types of IP addresses?
• Define what VPN stands for and its purpose.
• What is the main purpose of the "tracert" command?
• Why is DNS important in networking?
• What is the purpose of a network protocol?
• What is typically one of the primary uses of a VLAN?
• What is an Access Control List (ACL)?
• Which device is primarily responsible for connecting multiple networks?
• What type of addressing uses a combination of network and host bits?
• What information does a switch record to build its MAC address table?
• What does VLAN stand for in networking?
• What is the concept of "network segmentation" aimed at improving?
• What characterizes the client-server model in networking?
• What is a network topology?
• What is "packet switching" in networking?
• What purpose does a VPN serve?
• What is the basic function of an Internet Protocol (IP)?
• What distinguishes IPv4 from IPv6?
• What does QoS stand for in networking?
• Describe the function of a switch within a network.
• Which of the following is a primary benefit of using a proxy server?
• In which scenario would DHCP reservations be most useful?
• How many usable IP addresses are available in a network with a subnet mask of 255.255.255.240?
• Which command is used to configure a hostname on the router?
• What does the acronym LAN stand for?
• What does bandwidth monitoring help network administrators to do?
• What does "throughput" measure in a network?
• What is the common default port for HTTP traffic?
• What is port forwarding?
• What is the primary use of a proxy server?
• What is the significance of a public IP address?
• Explain the purpose of DHCP.
• Which of the following is NOT a characteristic of multicast transmission?
• What is the primary function of a router in a network?
• What does the acronym RDP stand for in networking?
• Which layer in the OSI model is primarily responsible for application services?
• What is the purpose of using SSH to connect to a router?
• With a custom subnet mask of 255.255.255.248, how many usable IP addresses are available?
• What does the term 802.11 refer to?
• What type of attack is known as the ping of death?
• What is meant by digital footprint in networking?
• What is a mesh network topology?
• What is one benefit of using a layered network model?
• What protocol is typically used for sending email?
• A DHCP server is configured with the address pool 192.168.10.0/24. If there are 3 printers that need reserved static IP addresses, how many IP addresses are left for other hosts?
• What is the main function of the application layer in the OSI model?
• What is the primary purpose of a network?
• What is the primary function of a modem?
• What does the term 'throughput' refer to in networking?
• Which layer in the OSI model does tunneling primarily operate within?
• Which of the following best describes a peer-to-peer network?
• What is the result of issuing the 'Router(config)# hostname CL1' command?
• What networking trend is used when hosting multiple operating systems on a single CPU?
• How does the service password encryption command enhance password security on Cisco routers and switches?
• What device is used to connect multiple networks together?
• What is the primary difference between IPv4 and IPv6?
• Convert the decimal number 620 into hexadecimal.
• Which device is commonly used to connect multiple devices to a network?
• What is the term used to describe the technique of monitoring and controlling data rates on a network?
• What does the term "DMZ" mean in networking?
• What does DHCP leasing refer to?
• What is the maximum recommended length for a CAT5 Ethernet cable?
• What is the key difference between a keyword and an argument in IOS command structure?
• Convert the decimal number 2001 into hexadecimal.
• Why is network segmentation recommended in larger networks?
• What protocol is used to securely transmit files over a network?
• What is the purpose of website caching?