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The service that resolves fully qualified domain names (FQDN) to IP addresses is:
The service that resolves fully qualified domain names (FQDN) to IP addresses is:A . Windows Internet Name Service (WINS).B . Domain Name Service (DNS).C . Internet Service Provider (ISP).D . Address Resolution Protocol (ARP).View AnswerAnswer: B Explanation: The DNS translates Internet domain and host names to IP addresses. DNS automatically...
One purpose of a perimeter network is to:
One purpose of a perimeter network is to:A . Make resources available to the intranet.B . Link campus area networks (CANs).C . Link local area networks (LANs).D . Make resources available to the Internet.View AnswerAnswer: D Explanation: In computer security, a DMZ or demilitarized zone (sometimes referred to as a...
To which IP configuration does the CIDR notation 192.168.1.1/25 refer?
To which IP configuration does the CIDR notation 192.168.1.1/25 refer?A . 192.168.1.1 255.255.255.64B . 192.168.1.1 255.255.255.1C . 192.168.1.1 255.255.255.32D . 192.168.1.1 255.255.255.256E . 192.168.1.1 255.255.255.128View AnswerAnswer: E Explanation: Reference: http://www.subnet-calculator.com/
At what layer in the OSI model are hardware addresses referenced?
At what layer in the OSI model are hardware addresses referenced?A . NetworkB . ApplicationC . Data linkD . PhysicalView AnswerAnswer: C
In which physical network topology is each computer connected to a central point?
In which physical network topology is each computer connected to a central point?A . StarB . MeshC . RingD . BusView AnswerAnswer: A Explanation: In local area networks with a star topology, each network host is connected to a central hub with a point-topoint connection.
Which technology provides the highest bit rate?
Which technology provides the highest bit rate?A . T1B . ElC . DS3D . ISDNView AnswerAnswer: C Explanation: A DS3 line (sometimes also referred to as T3) is a dedicated, high bandwidth, fiber circuit with a speed of 45 Mbps. Incorrect: Not A: T1, 1.544Mbps Not B: E1, 2.048Mbps Not...
The ping tool is used to: (Choose two.)
The ping tool is used to: (Choose two.)A . Determine the network portion of a host address.B . Self-test a host's own network interface.C . Determine whether a host is reachable.D . Manage a host's session when UDP is used.View AnswerAnswer: BC Explanation: Ping is a computer network administration software...
A Layer 2 device that connects multiple computers within a network is a:
A Layer 2 device that connects multiple computers within a network is a:A . RepeaterB . SwitchC . RouterD . PacketView AnswerAnswer: B Explanation: Layer 2 switching uses the media access control address (MAC address) from the host's network interface cards (NICs) to decide where to forward frames.
In a physical star topology, the central device is referred to as a:
In a physical star topology, the central device is referred to as a:A . BridgeB . ServerC . segmenterD . HubView AnswerAnswer: D Explanation: In local area networks with a star topology, each network host is connected to a central hub with a point-topoint connection.
Which of the following services masks internal IP addresses from outside the network?
Which of the following services masks internal IP addresses from outside the network?A . DHCPB . WINSC . NATD . DNSView AnswerAnswer: C Explanation: The majority of NATs map multiple private hosts to one publicly exposed IP address. In a typical configuration, a local network uses one of the designated...
