Business Data Networks and Security 10th Edition

IP is reliable because of ________. A) echo and echo reply messages B) error advisement messages C) both A and B D) neither A nor B Answer: D Answer: D Answer: D MPLS routers base their decisions on a packet's ________. A) destination IP address B) label number C) both A and B D) neither A nor B Answer: B Answer: B Answer:

In this book, we use the terms Ethernet and 802.3 interchangeably. Answer: TRUE Answer: TRUE Answer: TRUE Incompatibilities between signaling systems in United States and Europe cause serious problems. Answer: FALSE Answer: FALSE Answer: FALSE In NFC, an attacker several meters away cannot read the transaction. Answer: FALSE Answer: FALSE Answer: FALSE Message units are a time and distance

Convert a decimal number 15 to the binary number. A) It is a binary number. B) 1100 C) 1101 D) 1111 Answer: D Answer: D Answer: D Four-way closes use ________ segments. A) FIN B) RST C) either A or B D) neither A nor B Answer: A Answer: A Answer: A What organization creates Ethernet standards? (Give the most specific answer.) A) IEEE B) IETF C)

In IP subnet planning, you need to have at least 130 subnets. How large should your subnet part be? A) 6 B) 7 C) 8 D) none of the above Answer: C Answer: C Answer: C Which of the following uses OFDM? A) 802.11ac B) 802.11n C) both A and B D) neither A nor B Answer: C Answer: C Answer: C In 802.11g,

7,000 bps can also be written as ________. A) 7 Kbps B) 7 Mbps C) 7 Gbps D) none of the above Answer: A Answer: A Answer: A Creating effective backup links in RSTP is ________. A) completely automatic B) simple and largely automatic C) difficult and time consuming D) impossible Answer: C Answer: C Answer: C QAM uses ________. A) amplitude modulation B) phase modulation C)

In HTTP, the end of a header field is usually indicated by a ________. A) bit position B) CRLF C) colon D) blank line Answer: B Answer: B Answer: B After the data link layer process does encapsulation, it passes the IP packet to the ________ layer process. A) physical B) internet C) transport D) none of the above Answer: A Answer:

To connect to an access point, you must know its ________. A) SSID B) EUI-48 address C) IP address D) Wi-Fi ID Answer: A Answer: A Answer: A A password-cracking attack that tries all combinations of keyboard characters is called a ________. A) dictionary attack B) hybrid mode dictionary attack C) brute-force attack D) comprehensive keyboard attack Answer: C Answer: C Answer: C To

For Netflix, ________ is a(n) ________, and ________ is a(n) ________. A) Google, IaaS, AWS, IaaS B) Google, SaaS, AWS, SaaS C) Google, IaaS, AWS, SaaS D) Google, SaaS, AWS, IaaS Answer: D Answer: D Answer: D When a firewall policy server is used to manage SPI firewalls, what device creates specific ACL rules? A) the policy server B)

BPSK modulation uses two ________. A) amplitudes B) frequencies C) phases D) none of the above Answer: C Answer: C Answer: C Which is NOT one of the three parts of a public IPv6 unicast address? A) subnet ID B) routing prefix C) host part D) All of the above are parts in a public IPv6 unicast address. Answer: C Answer: C Answer:

Priority addresses the problem of ________. A) momentary traffic peaks B) chronic under-capacity C) both A and B D) neither A nor B Answer: A Answer: A Answer: A The Trojan horse placed on the first compromised GHOSTNET client could ________. A) conduct audio and video surveillance B) delete files C) both A and B D) neither A nor B Answer:

BPSK uses ________ phase levels. A) 2 B) 4 C) 8 D) 15 Answer: A Answer: A Answer: A Which of the following layers has more standards than the other three layers? A) data link B) Internet C) transport D) application Answer: D Answer: D Answer: D Actions that people are allowed to take on a resource come under the heading of ________. A) hacks B)

To make a forwarding decision, a router looks at the arriving packet's ________. A) destination IP address B) destination EUI-48 address C) both A and B D) MAC addresses Answer: A Answer: A Answer: A Which of the following can spread more rapidly? A) directly-propagating viruses B) directly-propagating worms C) Both of the above can spread with approximately equal speed.

Spread spectrum transmission is used in WLANs for ________. A) higher transmission speed B) more reliable transmission C) greater security D) more efficient transmission Answer: B Answer: B Answer: B ACLs are used for packets in the ________ state. A) connection-opening B) ongoing communication C) both A and B D) neither A nor B Answer: A Answer: A Answer: A ARP operates at ________. A)

Strong security is needed to ________. A) collect information from remote switches B) reconfigure remote switches C) have a MIB D) reduce total costs Answer: B Answer: B Answer: B If more users move to an access point, this decreases ________. A) individual throughput B) aggregate throughput C) both A and B D) neither A nor B Answer: A Answer: A Answer: A How

Express the mask /18 in dotted decimal notation. A) 255.0.0.0 B) 255.255.0.0 C) 255.255.255.0 D) none of the above Answer: D Answer: D Answer: D Users are primarily concerned with the ________ layer. A) application B) transport C) internet D) physical Answer: AExplanation: A) Users focus on the application layer because it is the only layer whose functionality users see directly.[/cpmembership] Answer:

Client PCs must have digital certificates in ________. A) transport mode B) tunnel mode C) both A and B D) neither A nor B Answer: A Answer: A Answer: A Skype offers ________. A) free calling among Skype customers B) free calling to and from Public Switched Telephone Network customers C) both A and B D) neither A nor B Answer:

LAN speeds are faster than WAN speeds. This is because of ________. A) technological limitations B) regulatory limitations C) slow corporate adoption of newer WAN technologies D) economic reasons Answer: D Answer: D Answer: D Throughput is ________. A) the speed a network actually provides to users B) a network's rated speed C) both A and B D) neither A nor

________ are full programs. A) Viruses B) Worms C) both A and B D) neither A nor B Answer: B Answer: B Answer: B An EUI-48 address was formerly called a(n) ________ address. A) IPv4 B) IPv6 C) MAC D) DNS Answer: C Answer: C Answer: C What type of address is 100 bits long? A) IPv4 B) IPv6 C) EUI-48 D) none of the above Answer: D Answer:

________ is a technique for preventing two wireless stations from transmitting at the same time and therefore interfering with each other. A) Creating extended service sets B) Roaming C) The distribution system D) Media access control Answer: D Answer: D Answer: D The password "NeVEr" can be defeated by a ________. A) dictionary attack B) hybrid dictionary attack C) brute-force

For ADSL service, which of the following typically must be added to the telephone system? A) a DSLAM B) a transmission line to the customer premises C) both A and B D) neither A nor B Answer: A Answer: A Answer: A The path that a frame takes across a single network is a ________. A) physical link B)

In IPv6, the payload length gives the number of octets in the ________. A) entire packet B) entire packet minus the main header C) entire packet minus the main and extension headers D) entire packet minus the extension headers Answer: B Answer: B Answer: B A ________ provides telephone service to customers. A) PTT B) Ministry of Telecommunications C) both

In a four-step close, which side transmits a FIN segment? A) the side that initiates the close B) the other side C) either side D) neither side Answer: C Answer: C Answer: C If your subnet part is 8 bits long, you can have ________ subnets. A) 64 B) 128 C) 256 D) 254 Answer: D Answer: D Answer: D CSMA/CA+ACK usually is ________. A)

Which of the following is NOT one of the four major security planning principles? A) perimeter defense B) risk analysis C) comprehensive security D) defense in depth Answer: A Answer: A Answer: A The router selects a row in which the next-hop router is labeled local. The router will send the packet to the ________. A) default router B)

What propagation problem becomes worse as there is a large and dense object between sender and receiver? A) multipath interference B) shadow zones or dead zones C) both A and B D) neither A nor B Answer: B Answer: B Answer: B Which of the following can increase reliability considerably in an Ethernet LAN? A) using a hierarchical

In what mode of 802.11i operation is a central authentication server used? A) 802.1X mode B) PSK mode C) both A and B D) neither A nor B Answer: A Answer: A Answer: A E-mail bodies that have non-English text use ________. A) RFC 822 and RFC 2822 B) HTTP C) MIME D) UNICODE Answer: D Answer: D Answer: D Momentary traffic peaks can