Cisco Certified Technician- Exam Study
Guide – Practice Questions & Verified
Answers
Prepare for your exams with confidence using this comprehensive and well-organized study
guide. This resource is designed to help students understand key concepts, strengthen their
knowledge, and improve exam performance through carefully structured practice questions
and detailed explanations.
The document includes exam-style questions that closely reflect the format and difficulty of
real assessments, helping students become familiar with the types of questions they may
encounter. Each question is accompanied by accurate answers and clear explanations,
allowing you to fully understand the reasoning behind the correct responses.
What This Study Guide Offers
✔ Practice questions based on important and commonly tested topics
✔ Verified answers with clear, easy-to-follow explanations
✔ Well-structured formatting for efficient studying and revision
✔ Coverage of key course concepts and learning objectives
✔ A reliable resource for strengthening understanding and exam readiness
Why This Resource Is Useful
This study guide is designed to support students who want to review effectively, identify
knowledge gaps, and improve their test-taking skills. By practicing with exam-style questions
and reviewing detailed explanations, students can reinforce their understanding and build
confidence before their exams.
Ideal For
• Final exam preparation
• Midterm review
• Regular revision sessions
• Improving understanding of difficult topics
• Enhancing overall academic performance
,Whether you are studying weeks in advance or reviewing shortly before an exam, this guide
provides structured practice and clear explanations to help you prepare effectively and
perform at your best.
A valuable study resource for students who want to prepare smarter and succeed in their
exams.
ATM (Asynchronous Transfer Mode) ------- ✔ CORRECT ANSWER ✓✓The international standard
for cell relay in which multiple service types (such as voice, video, or data) are conveyed in fixed-
length (53-byte) cells. Fixed-length cells allow cell processing to occur in hardware, thereby
reducing transit delays. ATM is designed to take advantage of high-speed transmission media,
such as E3, SONET, and T3.
Bandwidth ------- ✔ CORRECT ANSWER ✓✓The difference between the highest and lowest
frequencies available for network signals. The term also is used to describe the rated
throughput capacity of a given network medium or protocol. The frequency range necessary to
convey a signal measured in units of hertz (Hz). For example, voice signals typically require
approximately 7 kHz of bandwidth and data traffic typically requires approximately 50 kHz of
bandwidth.
BRI (basic rate interface) ------- ✔ CORRECT ANSWER ✓✓Basic Rate Interface. ISDN interface
composed of two B channels and one D channel for circuit-switched communication of voice,
video, and data.
Broadcast ------- ✔ CORRECT ANSWER ✓✓Data packet that are sent to all nodes on a network.
Broadcasts are identified by a broadcast address.
CD (carrier detect) ------- ✔ CORRECT ANSWER ✓✓A signal that indicates whether an interface
is active. Also, a signal generated by a modem indicating that a call has been connected.
, CDP (Cisco discovery protocol) ------- ✔ CORRECT ANSWER ✓✓Media- and protocol-
independent device-discovery protocol that runs on all Cisco-manufactured equipment,
including routers, access servers, bridges, and switches. Using CDP, a device can advertise its
existence to other devices and receive information about other devices on the same LAN or on
the remote side of aWAN. Runs on all media that support SNAP, including LANs, Frame Relay,
and ATM media.
Central office (CO) ------- ✔ CORRECT ANSWER ✓✓The local telephone company office to which
all local loops in a given area connect and in which circuit switching of subscriber lines occurs.
Channel Service Unit (CSU) ------- ✔ CORRECT ANSWER ✓✓Digital interface device that
connects end-user equipment to the local digital telephone loop. Often referred to together
with DSU, as CSU/DSU.
Checksum ------- ✔ CORRECT ANSWER ✓✓Method for checking the integrity of transmitted
data. A checksum is an integer value computed from a sequence of octets taken through a
series of arithmetic operations. The value is recomputed at the receiving end and is compared
for verification.
Collision domain ------- ✔ CORRECT ANSWER ✓✓In Ethernet, the network area within which
frames that have collided are propagated. Repeaters and hubs propagate collisions; LAN
switches, bridges, and routers do not.
Common Language Equipment Identifier (CLEI) ------- ✔ CORRECT ANSWER ✓✓The standard
code used by suppliers to identify equipment parts and system configurations. Its a registered
trademark of Bellcore (now Telcordia).
Customer premises equipment (CPE) ------- ✔ CORRECT ANSWER ✓✓Terminating equipment,
such as terminals, telephones, and modems, supplied by the telephone company, installed at
customer sites, and connected to the telephone company network. Can also refer to any
telephone equipment residing on the customer site.
, Cyclic redundancy check (CRC) ------- ✔ CORRECT ANSWER ✓✓Error-checking technique in
which the frame recipient calculates a remainder by dividing frame contents by a prime binary
divisor and compares the calculated remainder to a value stored in the frame by the sending
node.
Data Communications equipment (DCE) ------- ✔ CORRECT ANSWER ✓✓Devices and
connections of a communications network that comprise the network end of the user-to-
network interface. It provides a physical connection to the network, forwards traffic, and
provides a clocking signal used to synchronize data transmission between DCE and DTE devices.
Modems and interface cards are examples.
Data Service Unit (DSU) ------- ✔ CORRECT ANSWER ✓✓Device used in digital transmission that
adapts the physical interface on a DTE device to a transmission facility, such as T1 or E1. The
DSU also is responsible for such functions as signal timing. Often referred to together with CSU,
as CSU/DSU.
Data terminal equipment (DTE) ------- ✔ CORRECT ANSWER ✓✓Device at the user end of a user-
network interface that serves as a data source, destination, or both. DTE connects to a data
network through a DCE device (for example, a modem) and typically uses clocking signals
generated by the DCE. DTE includes such devices as computers, protocol translators, and
multiplexers.
Echo ------- ✔ CORRECT ANSWER ✓✓Telephony-Audible and unwanted leak-through of one's
own voice into one's own receive (return) path. Hence signal from the transmission path is
returning to one's ear through the receive path.
Encapsulation ------- ✔ CORRECT ANSWER ✓✓Wrapping of data in a particular protocol header.
For example, Ethernet data is wrapped in a specific Ethernet header before network transit.
Also, when bridging dissimilar networks, the entire frame from one network is simply placed in
the header used by the data link layer protocol of the other network.
Guide – Practice Questions & Verified
Answers
Prepare for your exams with confidence using this comprehensive and well-organized study
guide. This resource is designed to help students understand key concepts, strengthen their
knowledge, and improve exam performance through carefully structured practice questions
and detailed explanations.
The document includes exam-style questions that closely reflect the format and difficulty of
real assessments, helping students become familiar with the types of questions they may
encounter. Each question is accompanied by accurate answers and clear explanations,
allowing you to fully understand the reasoning behind the correct responses.
What This Study Guide Offers
✔ Practice questions based on important and commonly tested topics
✔ Verified answers with clear, easy-to-follow explanations
✔ Well-structured formatting for efficient studying and revision
✔ Coverage of key course concepts and learning objectives
✔ A reliable resource for strengthening understanding and exam readiness
Why This Resource Is Useful
This study guide is designed to support students who want to review effectively, identify
knowledge gaps, and improve their test-taking skills. By practicing with exam-style questions
and reviewing detailed explanations, students can reinforce their understanding and build
confidence before their exams.
Ideal For
• Final exam preparation
• Midterm review
• Regular revision sessions
• Improving understanding of difficult topics
• Enhancing overall academic performance
,Whether you are studying weeks in advance or reviewing shortly before an exam, this guide
provides structured practice and clear explanations to help you prepare effectively and
perform at your best.
A valuable study resource for students who want to prepare smarter and succeed in their
exams.
ATM (Asynchronous Transfer Mode) ------- ✔ CORRECT ANSWER ✓✓The international standard
for cell relay in which multiple service types (such as voice, video, or data) are conveyed in fixed-
length (53-byte) cells. Fixed-length cells allow cell processing to occur in hardware, thereby
reducing transit delays. ATM is designed to take advantage of high-speed transmission media,
such as E3, SONET, and T3.
Bandwidth ------- ✔ CORRECT ANSWER ✓✓The difference between the highest and lowest
frequencies available for network signals. The term also is used to describe the rated
throughput capacity of a given network medium or protocol. The frequency range necessary to
convey a signal measured in units of hertz (Hz). For example, voice signals typically require
approximately 7 kHz of bandwidth and data traffic typically requires approximately 50 kHz of
bandwidth.
BRI (basic rate interface) ------- ✔ CORRECT ANSWER ✓✓Basic Rate Interface. ISDN interface
composed of two B channels and one D channel for circuit-switched communication of voice,
video, and data.
Broadcast ------- ✔ CORRECT ANSWER ✓✓Data packet that are sent to all nodes on a network.
Broadcasts are identified by a broadcast address.
CD (carrier detect) ------- ✔ CORRECT ANSWER ✓✓A signal that indicates whether an interface
is active. Also, a signal generated by a modem indicating that a call has been connected.
, CDP (Cisco discovery protocol) ------- ✔ CORRECT ANSWER ✓✓Media- and protocol-
independent device-discovery protocol that runs on all Cisco-manufactured equipment,
including routers, access servers, bridges, and switches. Using CDP, a device can advertise its
existence to other devices and receive information about other devices on the same LAN or on
the remote side of aWAN. Runs on all media that support SNAP, including LANs, Frame Relay,
and ATM media.
Central office (CO) ------- ✔ CORRECT ANSWER ✓✓The local telephone company office to which
all local loops in a given area connect and in which circuit switching of subscriber lines occurs.
Channel Service Unit (CSU) ------- ✔ CORRECT ANSWER ✓✓Digital interface device that
connects end-user equipment to the local digital telephone loop. Often referred to together
with DSU, as CSU/DSU.
Checksum ------- ✔ CORRECT ANSWER ✓✓Method for checking the integrity of transmitted
data. A checksum is an integer value computed from a sequence of octets taken through a
series of arithmetic operations. The value is recomputed at the receiving end and is compared
for verification.
Collision domain ------- ✔ CORRECT ANSWER ✓✓In Ethernet, the network area within which
frames that have collided are propagated. Repeaters and hubs propagate collisions; LAN
switches, bridges, and routers do not.
Common Language Equipment Identifier (CLEI) ------- ✔ CORRECT ANSWER ✓✓The standard
code used by suppliers to identify equipment parts and system configurations. Its a registered
trademark of Bellcore (now Telcordia).
Customer premises equipment (CPE) ------- ✔ CORRECT ANSWER ✓✓Terminating equipment,
such as terminals, telephones, and modems, supplied by the telephone company, installed at
customer sites, and connected to the telephone company network. Can also refer to any
telephone equipment residing on the customer site.
, Cyclic redundancy check (CRC) ------- ✔ CORRECT ANSWER ✓✓Error-checking technique in
which the frame recipient calculates a remainder by dividing frame contents by a prime binary
divisor and compares the calculated remainder to a value stored in the frame by the sending
node.
Data Communications equipment (DCE) ------- ✔ CORRECT ANSWER ✓✓Devices and
connections of a communications network that comprise the network end of the user-to-
network interface. It provides a physical connection to the network, forwards traffic, and
provides a clocking signal used to synchronize data transmission between DCE and DTE devices.
Modems and interface cards are examples.
Data Service Unit (DSU) ------- ✔ CORRECT ANSWER ✓✓Device used in digital transmission that
adapts the physical interface on a DTE device to a transmission facility, such as T1 or E1. The
DSU also is responsible for such functions as signal timing. Often referred to together with CSU,
as CSU/DSU.
Data terminal equipment (DTE) ------- ✔ CORRECT ANSWER ✓✓Device at the user end of a user-
network interface that serves as a data source, destination, or both. DTE connects to a data
network through a DCE device (for example, a modem) and typically uses clocking signals
generated by the DCE. DTE includes such devices as computers, protocol translators, and
multiplexers.
Echo ------- ✔ CORRECT ANSWER ✓✓Telephony-Audible and unwanted leak-through of one's
own voice into one's own receive (return) path. Hence signal from the transmission path is
returning to one's ear through the receive path.
Encapsulation ------- ✔ CORRECT ANSWER ✓✓Wrapping of data in a particular protocol header.
For example, Ethernet data is wrapped in a specific Ethernet header before network transit.
Also, when bridging dissimilar networks, the entire frame from one network is simply placed in
the header used by the data link layer protocol of the other network.
