Network+ Practice Exam (N10-006) – Flashcards
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A device designed to filter and transfer data packets between dissimilar types of computer networks is called:
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Router
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Which of the following answers refers to a data link layer (Layer 2) device designed to forward data packets between Local Area Network (LAN) segments?
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Switch
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A device that apart from the function of an ordinary network switch can also provide additional functions at higher levels of the OSI reference model is known as a multilayer switch.
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True
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Which of the following answers refers to a software or hardware that monitors network traffic and depending on the configuration settings applied to each data packet either blocks it or allows it to pass through?
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Firewall
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A security solution implemented on an individual computer monitoring that specific system for malicious activities or policy violations is referred to as:
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HIDS
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Which of the following answers illustrates the difference between passive and active security breach response?
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IDS vs. IPS
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An infrastructure device designed for connecting wireless/wired client devices to a network is commonly referred to as:
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Access Point (AP)
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An application software used to selectively block access to certain websites is an example of:
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Content filter
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A network device designed for managing the optimal distribution of workloads across multiple computing resources is called:
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Load balancer
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The disadvantage from using this device results from the fact that any incoming signal on any of its ports is re-created and sent out on any connected ports which has a negative impact on network performance.
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Hub
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Which of the devices listed below allows for establishing a communication channel over a PSTN?
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Analog modem
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A technology that allows for prioritizing certain types of network traffic in order to improve the overall network effectiveness and performance is known as:
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Packet shaping
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Which of the following answers refers to a dedicated device for managing encrypted connections established over an untrusted network, such as the Internet?
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VPN concentrator
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A system that uses public network (e.g. Internet) as a means for creating private encrypted connections between remote locations is known as:
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Virtual Private Network (VPN)
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An SSL VPN connection typically requires a dedicated VPN client application.
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False
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Which of the following answers refers to Generic Routing Encapsulation (GRE)?
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Tunneling protocol
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Which of the following solutions are used for implementing VPNs? (Select all that apply)
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IPsec GRE SSL/TLS PPTP
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In the AAA security architecture, the process of tracking accessed services as well as the amount of consumed resources is called:
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Accounting
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Which of the answers listed below refers to the process of granting or denying access to resources?
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Authorization
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Which part of the AAA security architecture deals with the verification of the identity of a person or process?
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Authentication
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Which of the following solutions provide(s) the AAA functionality? (Select all that apply)
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RADIUS TACACS+
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A dial-up or VPN connection allowing remote users to access corporate network requires what type of service?
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RAS
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A software solution designed to enable interaction between two devices over a network is generally referred to as:
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Web service
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An IP PBX system is an example of:
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Unified voice services
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Which of the following answers lists an example of a protocol used for implementing control over multiple Access Points (APs)?
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LWAPP
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Which of the following solutions provides an alternative to manual assignment of IP addresses?
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DHCP
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One of the features of the Dynamic Host Configuration Protocol (DHCP) is the capability for static allocation of an IP address based on the IP-to-MAC address mapping.
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True
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Which of the following terms refers to permanent IP address assignment from a DHCP server?
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Reservation
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A range of IP addresses assigned to hosts requesting dynamic IP address from a DHCP server is known as:
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Scope
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The duration of time a DHCP client can use an IP address dynamically assigned by the DHCP server is referred to as:
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Lease
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DHCP allows for passing additional configuration settings to DHCP clients on a network. The additional settings might include (among other types of configuration info) the default gateway IP address, or DNS server IP address. Which of the answers listed below refers to the part of a DHCP message containing those settings?
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Options
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Networked clients not residing on the same subnet as the DHCP server can still obtain an IP address from the server through a DHCP relay agent.
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True
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Which of the following answers refers to a system containing mappings of domain names to various types of data, such as for example numerical IP addresses?
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DNS
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In order to be able to connect to a website and display its contents, a URL entered in the web browser address bar needs to be translated into an IP address. Which of the servers listed below is used to handle this type of request?
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DNS server
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Which of the DNS database records listed below returns a 32-bit IPv4 address?
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A
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Which of the following DNS database records maps a domain name to a list of mail servers for that domain?
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MX
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The DNS database AAAA record creates a pointer that maps a hostname to:
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IPv6 address
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Which of the DNS database records listed below allows multiple domain names to resolve to the same IP address?
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CNAME
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Which of the following statements describing the function of a DNS PTR record are true? (Select 2 answers)
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PTR record resolves an IP address to a hostname for reverse lookups. The functionality provided by a PTR record is the opposite of A and AAAA DNS records.
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Which of the answers listed below refers to a solution that allows for keeping a domain name linked to a changing IP address?
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Dynamic DNS (DDNS)
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In computer networking, a system or an application processing requests on behalf of another system is commonly referred to as:
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Proxy
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Which of the following statements describe the function of a forward proxy? (Select 2 answers)
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Acts on behalf of a client Hides the identity of a client
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Which of the statements listed below describe the function of a reverse proxy? (Select 2 answers)
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Acts on behalf of a server Hides the identity of a server
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Which of the following solutions alleviates the problem of depleting number of routable IPv4 addresses?
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NAT
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Dynamic Network Address Translation (DNAT) provides a permanent mapping between a private IP address and a public IP address on a one-to-one basis.
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False
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Static Network Address Translation (SNAT) provides a mapping between private IP address and any of the IP addresses belonging to the available public IP address pool.
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False
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Which of the following answers refers to a Network Address Translation (NAT) method that binds a combination of private IP address and port number with a corresponding public IP address and port information?
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PAT
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A server with a private IP address has been set up to handle requests from an outside (public) network. Which of the solutions listed below would enable this function?
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Port forwarding
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A type of network covering large geographic areas is commonly referred to as:
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WAN
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Which of the following answers list(s) the characteristic feature(s) of fiber-optic cabling? (Select all that apply)
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Immunity to electromagnetic interference Provides higher level of security than copper cabling (difficult to tap into) More suitable for carrying digital information than copper cabling
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Which of the following answers refers to an international standard for high-speed data communications over fiber-optic media?
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SONET
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A method that allows to combine multiple analog or digital data streams for transmission over a shared medium is known as:
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Multiplexing
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Which of the following answers refer(s) to the multiplexing method(s) used in fiber-optic communication? (Select all that apply)
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CWDM DWDM
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Which of the answers listed below refer to examples of packet-switching communication methods? (Select 2 answers)
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Frame relay ATM
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What are the characteristic features of satellite Internet connections? (Select all that apply)
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Signal latency Interference (weather dependent) Low connection speed
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The use of cable modems within a standard cable television infrastructure for Internet access is commonly referred to as:
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Broadband cable
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What is the most common type of a DSL Internet access?
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ADSL
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Which of the following solutions allows for simultaneous digital transmission of voice, video, data, and other network services over a PSTN?
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ISDN
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What is the size of an ATM cell?
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53 bytes
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Which of the following answers refers to a method for establishing a dedicated point-to-point link between two networked devices?
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PPP
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MLPPP provides a method for combining two or more physical communication links into one logical interface for the purpose of improved speed and redundancy.
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True
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Which of the technologies listed below enables the use of different types of network protocols on the same network?
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MPLS
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Which of the following answers refer to cellular technologies used in mobile networks? (Select 3 answers)
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CDMA GSM LTE
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What type of standard is LTE?
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4G
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The characteristic feature of the Evolved High-Speed Packet Access (HSPA+) standard is the use of:
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MIMO
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Which of the following Internet access types takes advantage of the traditional PSTN lines?
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Dial-up
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The IEEE 802.16 standards defining high-speed, long-distance wireless communication are also commonly referred to as:
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WiMAX
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In terms of size and reach, a Metropolitan Area Network (MAN) can be placed between a LAN (smaller type of network) and a WAN (larger type of network).
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True
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"Metro-Ethernet" is a general term for a computer network larger than a Local Area Network (LAN) and based on Ethernet standards.
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True
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Which of the following answers lists a more costly alternative to VPN?
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Leased line
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T1 lines support data transfer rates of up to:
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1.544 Mbps
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Which of the following answers lists the maximum data transfer rate of an E1 connection?
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2.048 Mbps
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T3 lines support data transfer rates of up to:
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44.736 Mbps
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Which of the answers listed below refers to the maximum data transfer rate of an E3 connection?
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34.368 Mbps
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Optical Carrier (OC) transmission rate specifications adhere to a pattern whereby OC prefix is followed by a number designating a multiple of the base unit of 51.84 Mbps.
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True
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An OC-3 line supports transmission rates of up to:
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155.52 Mbps
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Which of the answers listed below refers to the maximum data transfer rate of an OC-12 connection?
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622.08 Mbps
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Which of the answers listed below refer(s) to example(s) of circuit-switching communication method(s)? (Select all that apply)
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POTS T-carrier E-carrier
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What are the characteristic features of the RJ-11 connector? (Select 2 answers)
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Used with telephone cabling Copper cabling connector
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Which of the following answers refer to the RJ-45 connector? (Select 2 answers)
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Used with Ethernet network cabling Copper cabling connector
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Which of the following connector types would be used for terminating a T-1 line?
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RJ-48C
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The RS-232 standard defines an interface for parallel data transmission method.
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False
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Which of the following connector types are used for connecting devices to a RS-232 port? (Select 2 answers)
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DB-9/DE-9 DB-25
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A device used for the purpose of extending the length of various types of network cable runs is commonly referred to as:
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Coupler
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Which of the connector types listed below are used with coaxial cabling? (Select 2 answers)
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BNC F-connector
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A mechanism that allows for connecting one set of wires with another set of wires in telecommunications closets or local area networks (LANs) is commonly referred to as a punch-down block
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True
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The 66 block (older type/used in telephony) and the 110 block (newer type/used in networking) are examples of punch-down blocks.
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True
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One of the differences between the UTP and STP cabling is that STP cable takes advantage of additional protective cover reducing signal interference from outside sources.
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True
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Which of the cabling types listed below provide(s) protection against an outside signal interference? (Select all that apply)
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Coaxial Fiber-optic STP
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In twisted-pair cabling wires are grouped into pairs and wires in each pair are twisted around each other in order to reduce:
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Cross-talk
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What is the typical cable segment length for a copper twisted-pair Ethernet cable?
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100 meters
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Category 3 (CAT3) cable is a 10 Mbps twisted-pair copper cable used in telephone wiring.
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True
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Which of the following answers list(s) the characteristic feature(s) of a Category 5 (CAT5) cabling? (Select all that apply)
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Copper cable RJ-45 connector 100 Mbps Ethernet
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Which of the following twisted-pair copper cabling types is most commonly used in modern Ethernet networks?
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CAT5e
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What is the minimum cabling requirement for a 10GBASE-T network?
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CAT6
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The Category 6 (CAT6) cabling supports a 10 Gbps data transfer rate at a limited range of 33-55 meters, whereas CAT6A (Augmented) cabling allows for 10 Gbps data transfer rate over a cable segment length of 100 meters.
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True
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A type of enclosed space in a building (such as the one between a dropped ceiling and the structural ceiling) used for air handling is commonly referred to as:
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Plenum
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A special type of cabling with a fire-retardant jacket placed inside the space between structural floor and dropped ceiling or inside walls is known as a plenum-rated cabling.
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True
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Materials from which the plenum-rated cable's cover is made include low-smoke polyvinyl chloride (PVC) and fluorinated ethylene polymer (FEP).
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True
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Which of the following answers list examples of coaxial cabling types? (Select 2 answers)
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RG-59 RG-6
