ITN 262 QUIZ 2
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True or False? When handling an analog signal, the electronic circuits can self-correct minor errors.
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FALSE
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Modern internet technology evolved from research on:
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the ARPANET
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In a wireless transmission, a host first sends a:
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RTS message
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1111 1111 - 1111 1111 - 1111 0000 - 0000 0000 is an example of:
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a binary network mask
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A tool that captures packets on a network and helps you analyze the packets is:
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Wireshark
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192.168.1.1 is an example of:
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an IPv4 address
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A disadvantage of a point-to-point network is:
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no broadcasting
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The nmap utility:
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identifies the versions of network protocol software each host is running. maps all devices on a LAN.
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A MAC address:
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is associated with a network interface. must be unique on a network.
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An autonomous system (AS):
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handles two types of routing, interior and exterior. uses border routers to connect one AS to another.
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True or False? Private IP addresses may only be used on a private network.
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TRUE
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A disadvantage of a tree network is:
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address-based size limits
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True or False? A simple network has two primary parts: hosts and computers.
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FALSE
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True or False? Layer 2 routers connect LANs or other integrated networks together.
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FALSE
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True or False? If a host contains unprotected files, the files may be accessible to attackers. Because of this, many systems disable file sharing.
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TRUE
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The well-known port number 80 is used for:
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the World Wide Web
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Packet addressing and routing on the Internet rely entirely on:
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IP addresses
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True or False? The time to live (TTL) field in an IP header counts the number of hops a packet takes through routers on its way to its destination.
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TRUE
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A disadvantage of a mesh network is:
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congestion
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An advantage of a bus network is:
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no routing
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True or False? A collision occurs if two or more hosts try to transmit a packet at once.
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TRUE
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To see a list of MAC addresses on a Windows-based network:
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issue the ipconfig /all command
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True or False? When internet technology connects two networks with separate link layers together, each individual network is called a subnet.
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TRUE
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Three strategies for sending data across a network are:
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packet switching. message switching. circuit switching.
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To launch a distributed denial of service (DDOS) attack, an attacker often uses:
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a botnet
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An advantage of packet switching is:
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parallel transmission
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True or False? Network address translation (NAT) prevents hosts on a LAN from sharing the global IP address assigned by the ISP.
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False
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A rootkit is:
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software that hides on a computer and provides a back door for an attacker
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Another term for "maximum data rate" is:
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bandwidth
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A disadvantage of a star network is:
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broadcasting
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True or False? A frame is a single data packet on an Ethernet network.
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TRUE
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A major obstacle to becoming an ISP today is:
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the shortage of Internet addresses
