WorksheetsNetworking Quiz
Total questions: 77
Worksheet time: 2hrs 56mins
Which of the following is a primary characteristic of a circuit-switched network, like the traditional telephone system?
Data is broken into packets that can take different paths to the destination.
It is more efficient for bursty data traffic.
It requires end devices to establish and terminate sessions.
A dedicated communication path is established for the duration of the conversation.
A SOHO network typically connects networks in different geographic locations.
True
False
The type of network that spans a college campus is typically called a (a) .
Which command is used to enter the privileged EXEC mode on a Cisco IOS device?
configure terminal
enable
login
interface fastethernet 0/1
What is the purpose of the 'service password-encryption' command?
To require encrypted passwords for remote login
To encrypt all current and future plaintext passwords in the configuration file
To encrypt data packets traveling through the router
To set the encryption algorithm for the enable secret password
The 'hostname' command is configured in global configuration mode.
True
False
The command to assign an IP address to a VLAN 1 interface on a Layer 2 switch is 'ip address ________' (include the subnet mask).
Which layer of the TCP/IP model is responsible for path determination and logical addressing?
Network Access
Internet
Application
Transport
What is a key advantage of using a layered model for network communications?
All of the above
Prevents changes in one layer from affecting other layers
Promotes competition by defining standard functions
Simplifies protocol design and learning
The OSI model's Application layer only provides services to user applications like web browsers.
True
False
In the OSI model, the (a) layer is responsible for the mechanical and electrical specifications of the physical data connection.
Which type of fiber optic cable uses LEDs as a light source and is best for shorter-distance LANs?
Multimode Fiber
UTP Cable
Coaxial Cable
Singlemode Fiber
What is the primary cause of attenuation in a copper cable?
Signal reflection due to impedance mismatch
Electromagnetic interference from external sources
Crosstalk from adjacent wires
Resistance in the wire converting electrical energy to heat
A straight-through cable is used to connect two same-type devices, like a switch to a switch.
True
False
The TIA/EIA-568B standard for Ethernet wiring specifies the pinout order as: white/orange, orange, white/green, blue, white/blue, green, white/brown, (a) .
What is the decimal equivalent of the binary number 11010110?
118
150
202
214
What is the hexadecimal value 'D' equivalent to in decimal?
13
14
15
12
The binary number system is also known as base-16.
True
False
The 8-bit binary number for the decimal value 172 is (a) .
Which data link layer sublayer is responsible for MAC addressing and media access control?
MAC
LLC
Network
Physical
What is the primary purpose of the Frame Check Sequence (FCS) field in a data link frame?
Type identification
Addressing
Error detection
Frame sequencing
The Data Link layer is primarily concerned with logical addressing (IP addresses).
True
False
A network (a) is a data link layer device that connects network segments and makes forwarding decisions based on MAC addresses.
What does a switch do when it receives a frame with a destination MAC address that is not in its MAC address table?
Floods the frame out all ports except the incoming port
Drops the frame
Sends it back to the source
Broadcasts an ARP request
Which switching method allows the switch to start forwarding a frame after reading only the first 64 bytes, reducing latency but not error checking the entire frame?
Fragment-free
Store-and-forward
Cut-through
Fast-forward
What is the primary purpose of the Time-to-Live (TTL) field in an IP packet header?
To specify the maximum time a packet can be queued in a router
To indicate the packet's priority level
To synchronize timing between source and destination
To prevent packets from looping endlessly in the network
A router makes a forwarding decision based on the information in which layer of the OSI model?
Network Layer
Data Link Layer
Transport Layer
Physical Layer
The default gateway address on a host must be on the same IP network as the host's own IP address.
True
False
The network address 192.168.10.0 255.255.255.0 can accommodate (a) host addresses.
Which of the following is a private IP address range as defined by RFC 1918?
169.254.0.0 - 169.254.255.255
192.168.0.0 - 192.168.0.255
100.64.0.0 - 100.127.255.255
172.16.0.0 - 172.31.255.255
What is the first step a router takes when processing a packet?
Match the destination IP address to a routing table entry
Encapsulate the packet into a new Layer 2 frame
Check the packet's integrity and decrement the TTL
Determine the exit interface using the routing table
Static routes are always preferred over dynamic routes in a router's routing table.
True
False
The (a) protocol is used by a host to automatically obtain an IP address, subnet mask, and default gateway.
What is the most significant bit in the binary octet 10000000?
The leftmost bit (1)
The rightmost bit (0)
The fourth bit from the left (0)
The second bit from the right (0)
Which physical layer medium is most susceptible to electromagnetic interference (EMI)?
Shielded Twisted-Pair (STP) Copper
Unshielded Twisted-Pair (UTP) Copper
Coaxial Cable
Fiber-Optic Cable
The 'copy running-config startup-config' command saves the current configuration to volatile memory.
True
False
In the OSI model, data at the Transport layer is called a (a) .
What is the primary purpose of ARP (Address Resolution Protocol)?
To map an IP address to a MAC address
To map a MAC address to an IP address
To map a domain name to an IP address
To map an IP address to a domain name
Which switching method provides the highest level of error checking?
Cut-through
Fragment-free
Fast-forward
Store-and-forward
A /28 subnet mask (255.255.255.240) provides 14 usable host addresses per network.
True
False
The command to configure a default gateway on a Cisco switch is 'ip default-gateway (a) '
Convert the hexadecimal number 0x3F to decimal.
63
93
33
57
Which organization is responsible for the overall development of Internet standards, including RFCs?
IETF
IEEE
ISO
TIA/EIA
A hub operates at the Data Link layer of the OSI model.
True
False
The (a) command is used to test reachability to a network host.
What is the minimum Ethernet frame size?
64 Bytes
60 Bytes
1518 Bytes
1500 Bytes
Which protocol operates at the Transport layer and provides connection-oriented, reliable data transfer?
TCP
IP
UDP
ICMP
The subnet mask 255.255.0.0 is equivalent to a /16 prefix.
True
False
The (a) command displays the ARP table on a Windows computer.
What is the binary equivalent of the decimal number 191?
10111111
11011111
11101111
10111101
Which type of UTP cable is rated for frequencies up to 250 MHz and is suitable for 1000BASE-T Gigabit Ethernet?
Cat 6
Cat 5
Cat 5e
Cat 3
The Network layer adds a header and trailer to the PDU it receives from the Transport layer.
True
False
The process of dividing a large network into smaller, more manageable networks is called (a) .
Which of the following is a characteristic of a peer-to-peer network model?
It requires a dedicated network server
It provides centralized user authentication
Devices can function as both clients and servers
It is more scalable than a client-server model
What is the purpose of the 'no shutdown' interface configuration command?
To administrively enable an interface
To disable an interface
To clear interface statistics
To restart the interface driver
The Transport layer is responsible for the physical transmission of bits across the network medium.
True
False
The (a) field in an IP header identifies the upper-layer protocol that should receive the packet payload (e.g., TCP=6, UDP=17).
Which of the following is a loopback address for testing TCP/IP configuration on a local host?
127.0.0.1
169.254.1.1
192.168.0.1
10.0.0.1
What does the 'ping' command use to verify connectivity?
ICMP Echo Request and Reply
TCP handshake
ARP requests
UDP datagrams
A router will not forward a broadcast packet by default.
True
False
The command to view the current running configuration on a Cisco IOS device is 'show (a) '.
What is the decimal value of the binary number 00101001?
41
43
45
39
Which data link layer technology is defined by the IEEE 802.3 standard?
Ethernet
Wi-Fi (802.11)
Bluetooth
Token Ring
The 'ipconfig' command is used on Linux systems to view IP address configuration.
True
False
The maximum data unit that can be sent in one frame without fragmentation is known as the (a) .
Which of the following is a connectionless Transport layer protocol?
UDP
TCP
FTP
HTTP
What is the primary function of a default route (0.0.0.0/0) in a router's routing table?
To block all incoming traffic from the internet
To route packets to the local loopback network
To provide a backup path for dynamic routing protocols
A gateway of last resort for packets with no specific route
The Data Link layer uses IP addresses to identify the source and destination hosts.
True
False
The (a) command is used to trace the path a packet takes from source to destination.
How many host addresses are available in a /27 network?
30
32
28
26
Which of the following is NOT a characteristic of TCP?
Low overhead
Connection-oriented
Reliable delivery
Flow control
A VLAN allows you to logically segment a physical switch into multiple broadcast domains.
True
False
The (a) command encrypts the privileged EXEC mode password on a Cisco router.
What is the result of the AND operation between the IP address 192.168.10.55 and the subnet mask 255.255.255.0?
192.168.10.0
192.168.10.55
192.168.10.255
192.168.0.0
Which physical topology requires that all devices are connected to a central point, such as a switch?
Star
Bus
Ring
Mesh
The 'show interfaces' command displays Layer 1 and Layer 2 status information.
True
False
The process of converting digital data into signals for transmission is called (a) .
