COMPTIA NETWORK+ (N10-009) PRACTICE EXAM – QUESTIONS AND ANSWERS |
VERIFIED AND WELL DETAILED ANSWERS | PLUS RATIONALES | DOWNLOAD AND
PASS | LATEST EXAM UPDATE
*Core Domains*
*1. Networking Fundamentals*
*2. Network Implementations*
*3. Network Operations*
*4. Network Security*
*5. Network Troubleshooting*
*6. Cloud and Virtualization Technologies*
*7. Network Standards and Protocols*
*8. Regulatory Compliance and Ethics*
*Introduction*
*The purpose of this examination is to rigorously assess a candidate's competency in fo
Which protocol is primarily responsible for dynamically assigning IP addresses to
devices on a network?
,A. DNS
🟢 B. DHCP
C. SNMP
D. ICMP
🔴 Explanation: DHCP (Dynamic Host Configuration Protocol) automates the process of
assigning IP addresses, subnet masks, gateways, and other network parameters to
devices.
A network technician needs to connect two switches using a cable that supports
10Gbps speeds over a long distance. Which media type is most appropriate?
🟢 A. Single-mode fiber
B. Cat 6a UTP
C. Multi-mode fiber
D. Coaxial cable
🔴 Explanation: Single-mode fiber is designed for long-distance data transmission at high
speeds, making it the superior choice for enterprise backbones.
Which layer of the OSI model is responsible for logical addressing and routing?
A. Data Link
B. Physical
,C. Transport
🟢 D. Network
🔴 Explanation: Layer 3 (Network Layer) handles logical addressing (IP addresses) and
determines the best path for data packets to reach their destination.
A user reports that they cannot access a website, but they can ping the server's IP
address. Which service is likely misconfigured?
🟢 A. DNS
B. DHCP
C. ARP
D. STP
🔴 Explanation: If pinging the IP works but the hostname fails, the system cannot resolve
the domain name to the IP, indicating a DNS issue.
Which wireless standard operates exclusively in the 5GHz band and provides high
throughput?
A. 802.11b
B. 802.11g
C. 802.11n
🟢 D. 802.11ac
, 🔴 Explanation: 802.11ac (Wi-Fi 5) operates in the 5GHz spectrum, offering higher data
rates compared to older standards that relied on 2.4GHz.
An administrator wants to prevent unauthorized devices from connecting to a switch
port. Which security feature should be enabled?
A. VLAN tagging
🟢 B. Port security
C. DHCP snooping
D. BPDU guard
🔴 Explanation: Port security limits the number of MAC addresses allowed on a port and
can shut down the port if an unauthorized device connects.
Which command is used to display the current IP configuration on a Windows
workstation?
A. ifconfig
🟢 B. ipconfig
C. netstat
D. route
🔴 Explanation: ipconfig is the standard command-line utility for viewing and managing
TCP/IP configurations in Windows environments.
VERIFIED AND WELL DETAILED ANSWERS | PLUS RATIONALES | DOWNLOAD AND
PASS | LATEST EXAM UPDATE
*Core Domains*
*1. Networking Fundamentals*
*2. Network Implementations*
*3. Network Operations*
*4. Network Security*
*5. Network Troubleshooting*
*6. Cloud and Virtualization Technologies*
*7. Network Standards and Protocols*
*8. Regulatory Compliance and Ethics*
*Introduction*
*The purpose of this examination is to rigorously assess a candidate's competency in fo
Which protocol is primarily responsible for dynamically assigning IP addresses to
devices on a network?
,A. DNS
🟢 B. DHCP
C. SNMP
D. ICMP
🔴 Explanation: DHCP (Dynamic Host Configuration Protocol) automates the process of
assigning IP addresses, subnet masks, gateways, and other network parameters to
devices.
A network technician needs to connect two switches using a cable that supports
10Gbps speeds over a long distance. Which media type is most appropriate?
🟢 A. Single-mode fiber
B. Cat 6a UTP
C. Multi-mode fiber
D. Coaxial cable
🔴 Explanation: Single-mode fiber is designed for long-distance data transmission at high
speeds, making it the superior choice for enterprise backbones.
Which layer of the OSI model is responsible for logical addressing and routing?
A. Data Link
B. Physical
,C. Transport
🟢 D. Network
🔴 Explanation: Layer 3 (Network Layer) handles logical addressing (IP addresses) and
determines the best path for data packets to reach their destination.
A user reports that they cannot access a website, but they can ping the server's IP
address. Which service is likely misconfigured?
🟢 A. DNS
B. DHCP
C. ARP
D. STP
🔴 Explanation: If pinging the IP works but the hostname fails, the system cannot resolve
the domain name to the IP, indicating a DNS issue.
Which wireless standard operates exclusively in the 5GHz band and provides high
throughput?
A. 802.11b
B. 802.11g
C. 802.11n
🟢 D. 802.11ac
, 🔴 Explanation: 802.11ac (Wi-Fi 5) operates in the 5GHz spectrum, offering higher data
rates compared to older standards that relied on 2.4GHz.
An administrator wants to prevent unauthorized devices from connecting to a switch
port. Which security feature should be enabled?
A. VLAN tagging
🟢 B. Port security
C. DHCP snooping
D. BPDU guard
🔴 Explanation: Port security limits the number of MAC addresses allowed on a port and
can shut down the port if an unauthorized device connects.
Which command is used to display the current IP configuration on a Windows
workstation?
A. ifconfig
🟢 B. ipconfig
C. netstat
D. route
🔴 Explanation: ipconfig is the standard command-line utility for viewing and managing
TCP/IP configurations in Windows environments.
