Business Data Networks and Security, 11th Edition – Original Study Guide & Practice Questions by Raymond R. Panko & Julia L. Panko

TEST BANK FOR BUSINESS DATA
NETWORKS AND SECURITY 11TH
EDITION RAYMOND R. PANKO,
UNIVERSITY OF HAWAI`I AT
MĀNOA JULIA L. PANKO, WEBER
STATE UNIVERSITY PREPARED BY
RAYMOND R. PANKO
Business Data Networks and Security, 11th Edition (Panko) – Test Bank

Chapter 1: Core Network Concepts and Terminology

1) Flooding a host with traffic so that it cannot serve its legitimate users is a ______ attack.
A) hacking
B) virus
C) malware
D) DoS
Answer: D
Rationale: A Denial of Service (DoS) attack floods a host with traffic to prevent it from serving legitimate
users. Hacking involves unauthorized access, viruses attach to programs, and malware is a general term
for evil software.

2) The KrebsOnSecurity.com attack
A) was a denial of service attack.
B) used IoT devices to attack the site.
C) both A and B
D) neither A nor B
Answer: C
Rationale: The KrebsOnSecurity.com attack was a DDoS attack that utilized IoT devices (Mirai bots) to
flood the site with traffic, making both A and B correct.

3) Internet communication that does not involve a human is referred to with the term
A) World Wide Web
B) impersonal
C) anonymous
D) IoT
Answer: D

,Rationale: IoT (Internet of Things) refers to devices connected to the Internet that communicate
without human involvement. The other terms do not accurately describe this concept.

4) If a host cannot reach a DNS server, it
A) cannot have a host name
B) will have to rely on host names
C) will need to use a DHCP server
D) is unlikely to be able to communicate with most server hosts
Answer: D
Rationale: DNS servers translate host names to IP addresses. Without DNS, a host cannot resolve host
names to IP addresses, making communication with most server hosts (which are typically identified by
host names) difficult.

5) The Mirai bots in the KrebsOnSecurity.com attack were
A) client hosts
B) server hosts
C) IoT devices
D) all of the above
Answer: C
Rationale: The Mirai bots were IoT devices (such as cameras and routers) that were infected with
malware and used to launch the DDoS attack.

6) ISPs
A) carry traffic in the Internet
B) connect users to the Internet
C) both A and B
D) neither A nor B
Answer: C
Rationale: ISPs (Internet Service Providers) both carry traffic across the Internet and connect users to
the Internet. Both functions are core to their role.

7) A packet sent from one host to another over the Internet will ALWAYS pass through
A) a single ISP
B) more than 2 ISPs
C) exactly 2 ISPs
D) none of the above
Answer: D
Rationale: A packet may pass through one, two, or many ISPs depending on the route. There is no fixed
number that always applies.

8) We call any device connected to the Internet a(n)
A) IP
B) client

,C) router
D) host
Answer: D
Rationale: Any device connected to the Internet is called a host. This includes clients, servers, routers,
and other devices.

9) Which of the following is a host when it's on a network?
A) a client PC
B) a server
C) a mobile phone
D) all of the above
Answer: D
Rationale: All of these devices are hosts when connected to a network. A host is any device connected
to the Internet.

10) Which of the following is constantly leading to new applications?
A) increasing speed
B) increasing reliability
C) increasing availability wherever you are
D) all of the above
Answer: D
Rationale: All of these factors contribute to the development of new applications. Faster speeds, greater
reliability, and ubiquitous availability enable new uses of the Internet.

11) Who owns the Internet?
A) The U.S. Government
B) The United Nations
C) The IETF
D) No one
Answer: D
Rationale: No single entity owns the Internet. It is a decentralized network of networks.

12) Who is in charge of the Internet?
A) the U.S. Government
B) the United Nations
C) the IETF
D) No one
Answer: D
Rationale: No single entity is in charge of the Internet. It is governed by a loose collection of standards
organizations and voluntary cooperation.

13) The IETF primarily
A) manages the Internet

, B) creates Internet standards
C) coordinates the work of ISPs
D) all of the above
Answer: B
Rationale: The IETF (Internet Engineering Task Force) is primarily responsible for creating Internet
standards such as TCP/IP protocols.

14) From a security perspective, the Internet's ability to give access to nearly everyone is a
A) good thing
B) bad thing
C) both A and B
D) neither A nor B
Answer: B
Rationale: While access is good for communication, from a security perspective it is bad because it gives
attackers more opportunities to access systems.

15) In the name Internet, "inter" means
A) between
B) interior
C) international
D) interplanetary
Answer: A
Rationale: "Inter" means between, referring to the Internet being a network of networks that connects
between different networks.

16) Depicting the Internet as a cloud symbolizes
A) the Internet is amorphous
B) the Internet today is too complex to be understandable by humans
C) the Internet is too complex for anyone to depict
D) users do not have to know how the Internet operates
Answer: D
Rationale: The cloud symbol is used to indicate that users do not need to know the internal details of
how the Internet operates; they just need to know it works.

17) When you use your tablet to access the internet, the tablet is a
A) client host
B) server host
C) both A and B
D) neither A nor B
Answer: A
Rationale: A tablet accessing the Internet is a client host because it requests services from servers.