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質問 # 231
A consultant is working with two international companies. The companies will be sharing cloud resources for a project. Which of the following documents would provide an agreement on how to utilize the resources?
- A. AUP
- B. MOU
- C. NDA
- D. SLA
正解：B
解説：
A memorandum of understanding (MOU) is a document that describes an agreement between two or more parties on how to utilize shared resources for a project. An MOU is not legally binding, but it outlines the expectations and responsibilities of each party involved in the collaboration. An MOU can be used when two international companies want to share cloud resources for a project without creating a formal contract. Reference: https://www.comptia.org/training/books/network-n10-008-study-guide (page 405)
質問 # 232
A newly installed VoIP phone is not getting the DHCP IP address it needs to connect to the phone system.
Which of the following tasks needs to be completed to allow the phone to operate correctly?
- A. Implement a VoIP gateway
- B. Assign the phone's switchport to the correct VLAN
- C. Configure a route on the VoIP network router.
- D. Statically assign the phone's gateway address.
正解：B
質問 # 233
A network administrator received a report staling a critical vulnerability was detected on an application that is exposed to the internet. Which of the following Is the appropriate NEXT step?
- A. Deploy a new server to host the application.
- B. Check for the existence of a known exploit in order to assess the risk
- C. Install a network access control agent on the server.
- D. Immediately shut down the vulnerable application server.
正解：B
解説：
The appropriate next step in this situation would be to check for the existence of a known exploit in order to assess the risk. This is important because it will help the network administrator determine the severity of the vulnerability and the potential impact it could have on the organization. Once the network administrator has assessed the risk, they can then take appropriate action to address the vulnerability. This might include patching the application, deploying a new server to host the application, or implementing other security measures to mitigate the risk. It is generally not advisable to immediately shut down the vulnerable application server, as this could disrupt business operations and cause significant downtime. Similarly, installing a network access control agent on the server may not be the most effective solution, as it would not address the underlying vulnerability.
質問 # 234
A network technician is working at a new office location and needs to connect one laptop to another to transfer files. The laptops are newer models and do not have Ethernet ports. Access points are not available either.
Which Of the following types Of wireless network SSIDs does the network technician need to configure to be able to connect the laptops together?
- A. Distribution System Service
- B. Extended Service Set
- C. Basic Service Set
- D. Independent Basic Service Set
正解：D
解説：
Explanation
An Independent Basic Service Set (IBSS) is a type of wireless network that does not require an access point or a wired network. An IBSS allows wireless devices to communicate directly with each other using ad hoc mode. An IBSS is also known as an ad hoc network or a peer-to-peer network. A network technician can configure an IBSS to connect two laptops together and transfer files.
References: Network+ Study Guide Objective 1.4: Explain the properties and characteristics of TCP/IP
質問 # 235
Which of the following is MOST likely to generate significant East-West traffic in a datacenter?
- A. A backup of a large video presentation to cloud storage for archival purposes
- B. A query from an IoT device to a cloud-hosted server for a firmware update
- C. A duplication of a hosted virtual server to another physical server for redundancy
- D. A download of navigation data to a portable device for offline access
正解：C
解説：
East-West traffic refers to data flows between servers or devices within the same datacenter. When a hosted virtual server is duplicated to another physical server for redundancy, it generates significant East-West traffic as the data is replicated between the two servers. Reference:
Network+ N10-008 Objectives: 3.3 Given a scenario, implement secure network architecture concepts.
質問 # 236
A network technician recently installed 35 additional workstations. After installation, some users are unable to access network resources. Many of the original workstations that are experiencing the network access issue were offline when the new workstations were turned on. Which of the following is the MOST likely cause of this issue?
- A. Insufficient DHCP scope
- B. Incorrect VLAN setting
- C. Duplicate IP address
- D. Improper NIC setting
正解：A
質問 # 237
A technician was cleaning a storage closet and found a box of transceivers labeled 8Gbps. Which of the following protocols uses those transceivers?
- A. Fibre Channel
- B. Internet Small Computer Systems Interface
- C. Gigabit interface converter
- D. Coaxial over Ethernet
正解：A
解説：
The transceivers labeled 8Gbps are likely to be used with the Fibre Channel protocol. Fibre Channel is a high-speed networking technology that is primarily used to connect storage devices to servers in storage area networks (SANs). It is capable of transmitting data at speeds of up to 8 Gbps (gigabits per second), and uses specialized transceivers to transmit and receive data over fiber optic cables.
Coaxial over Ethernet (CoE) is a networking technology that uses coaxial cables to transmit data, and is not related to the transceivers in question. Internet Small Computer Systems Interface (iSCSI) is a protocol that allows devices to communicate over a network using the SCSI protocol, and does not typically use specialized transceivers. Gigabit interface converter (GBIC) is a type of transceiver used to transmit and receive data over fiber optic cables, but it is not capable of transmitting data at 8 Gbps.
質問 # 238
A network technician was troubleshooting an issue for a user who was being directed to cloned websites that were stealing credentials. The URLs were correct for the websites but an incorrect IP address was revealed when the technician used ping on the user's PC After checking the is setting, the technician found the DNS server address was incorrect Which of the following describes the issue?
- A. Misconfigured HSRP
- B. Rogue DHCP server
- C. Exhausted IP scope
- D. DNS poisoning
正解：C
質問 # 239
An engineer recently decided to upgrade the firmware on a router. During the upgrade, the help desk received calls about a network outage, and a critical ticket was opened. The network manager would like to create a policy to prevent this from happening in the future. Which of the following documents should the manager create?
- A. System life cycle
- B. Change management
- C. incident response
- D. Standard operating procedure
正解：B
質問 # 240
A network administrator wants to test the throughput of a new metro Ethernet circuit to verify that its performance matches the requirements specified m the SLA.
Which of the following would BEST help measure the throughput?
- A. Ping
- B. Netstat
- C. NetFlow
- D. iPerf
正解：D
質問 # 241
A network administrator responds to a support ticket that was submitted by a customer who is having issues connecting to a website inside of the company network The administrator verities that the customer could not connect to a website using a URL Which of the following troubleshooting steps would be BEST for the administrator to take?
- A. Attempt to connect to the site via IP address
- B. Check for certificate issues
- C. Check the NTP configuration.
- D. Contact the ISP
正解：A
解説：
The best option for the administrator to take would be to attempt to connect to the site via IP address. This will help to determine if the issue is related to the website's DNS address or if the site itself is not accessible. Checking for certificate issues may be necessary, but this should be done after the administrator has attempted to connect to the site via IP address. Contacting the ISP is unnecessary since the issue is related to the website inside of the company network, and checking the NTP configuration is not relevant to this issue.
When a customer is having issues connecting to a website using a URL, one of the first troubleshooting steps a network administrator should take is attempting to connect to the site using the IP address of the website. This will help to determine if the issue is related to a DNS resolution problem or a connectivity problem. If the administrator is able to connect to the website using the IP address, then the issue may be related to a DNS problem. However, if the administrator is still unable to connect, then the issue may be related to a connectivity problem. In either case, further troubleshooting steps will be necessary. Checking for certificate issues or NTP configuration, and contacting the ISP would not be the BEST initial steps in this scenario.
質問 # 242
A company is deploying a SAN at headquarters and a branch office 1, 000ml (1,609km) away that we access small amounts of dat a. Which of the following types of connections would be MOST cost effective to implement?
- A. Ethernet
- B. FCoE
- C. FC
- D. ISCSI
正解：B
質問 # 243
A network technician reviews an entry on the syslog server and discovers the following message from a switch:
SPANNING-TREE Port 1/1 BLOCKED
Which of the following describes the issue?
- A. A loop was discovered, and the impact was mitigated.
- B. The port was shut down, and it needs to be reactivated.
- C. An incorrectly pinned cable was disconnected.
- D. The link-local address on the port is incorrect.
正解：A
質問 # 244
Which of the following is the NEXT step to perform network troubleshooting after identifying an issue?
- A. Establish a theory.
- B. Escalate the issue.
- C. Implement a solution.
- D. Document the findings.
正解：A
解説：
1 Identify the Problem.
2 Develop a Theory.
3 Test the Theory.
4 Plan of Action.
5 Implement the Solution.
6 Verify System Functionality.
7 Document the Issue.
質問 # 245
Which of the following is the physical topology for an Ethernet LAN?
- A. Bus
- B. Star
- C. Ring
- D. Mesh
正解：B
解説：
Explanation
In a star topology, all devices on a network connect to a central hub or switch, which acts as a common connection point. Ethernet LANs typically use a star topology, with each device connected to a central switch.
References:
Network+ N10-008 Objectives: 2.2 Explain common logical network topologies and their characteristics.
質問 # 246
During the security audit of a financial firm the Chief Executive Officer (CEO) questions why there are three employees who perform very distinct functions on the server. There is an administrator for creating users another for assigning the users lo groups and a third who is the only administrator to perform file rights assignment Which of the following mitigation techniques is being applied'
- A. Container administration
- B. Job rotation
- C. Role separation
- D. Privileged user accounts
正解：C
質問 # 247
A technician is investigating packet loss to a device that has varying data bursts throughout the day. Which of the following will the technician MOST likely configure to resolve the issue?
- A. Port mirroring
- B. Flow control
- C. Duplex
- D. Jumbo frames
正解：A
質問 # 248
A network engineer is designing a new secure wireless network. The engineer has been given the following requirements:
1 Must not use plaintext passwords
2 Must be certificate based
3. Must be vendor neutral
Which of the following methods should the engineer select?
- A. TWP-RC4
- B. WPA2
- C. EAP-TLS
- D. CCMP-AES
正解：C
解説：
Explanation
EAP-TLS is the method that should be selected to meet the requirements for designing a new secure wireless network. EAP-TLS (Extensible Authentication Protocol - Transport Layer Security) is an authentication protocol that uses X.509 digital certificates for both clients and servers. It provides strong security and mutual authentication by using TLS encryption and public key cryptography. It does not use plaintext passwords or shared secrets that can be compromised or guessed. It is also an open standard that is vendor neutral and supported by most wireless devices1. References: https://www.securew2.com/blog/what-is-eap-tls 1
質問 # 249
A network administrator is working to configure a new device to provide Layer 2 connectivity to various endpoints including several WAPs. Which of the following devices will the administrator MOST likely configure?
- A. Cable modem
- B. Hub
- C. Switch
- D. Load balancer
- E. WLAN controller
正解：C
解説：
Explanation
A switch is a device that provides Layer 2 connectivity to various endpoints by forwarding frames based on MAC addresses. A switch can also connect to several WAPs (wireless access points) to provide wireless connectivity to wireless devices.
質問 # 250
To comply with industry requirements, a security assessment on the cloud server should identify which protocols and weaknesses are being exposed to attackers on the Internet. Which of the following tools is the MOST appropriate to complete the assessment?
- A. Use an IP scanner and target the cloud WAN network addressing.
- B. Use nmap and set the servers' public IPs as the targets.
- C. Run netstat in each cloud server and retrieve the running processes.
- D. Use tcpdump and parse the output file in a protocol analyzer.
正解：B
質問 # 251
Which of the following describes when an active exploit is used to gain access to a network?
- A. Risk assessment
- B. Baseline testing
- C. Vulnerability testing
- D. Penetration testing
- E. Posture assessment
正解：D
解説：
Penetration testing is a type of security testing that is used to assess the security of a system or network by actively exploiting known vulnerabilities. It is used to simulate an attack on the system and identify any weaknesses that may be exploited by malicious actors. As stated in the CompTIA Security+ Study Guide, "penetration testing is a type of security assessment that attempts to gain unauthorized access to networks and systems by exploiting security vulnerabilities."
質問 # 252
Which of the following is a system that is installed directly on a server's hardware and abstracts the hardware from any guest machines?
- A. Guest QS
- B. Storage array
- C. Type 1 hypervisor
- D. Virtual machine
正解：B
質問 # 253
Which of the following will reduce routing table lookups by performing packet forwarding decisions independently of the network layer header?
- A. EIGRP
- B. mGRE
- C. MPLS
- D. VRRP
正解：C
解説：
Explanation
Multiprotocol Label Switching, or MPLS, is a networking technology that routes traffic using the shortest path based on "labels," rather than network addresses, to handle forwarding over private wide area networks. As a scalable and protocol-independent solution, MPLS assigns labels to each data packet, controlling the path the packet follows. MPLS greatly improves the speed of traffic, so users don't experience downtime when connected to the network.
質問 # 254
A small, family-run business uses a single SOHO router to provide Internet and WiFi to its employees At the start of a new week, employees come in and find their usual WiFi network is no longer available, and there is a new wireless network to which they cannot connect. Given that information, which of the following should have been done to avoid this situation'
- A. The device firmware should have been kept current.
- B. The default credentials should have been changed
- C. Parental controls should have been enabled
- D. Unsecure protocols should have been disabled.
正解：A
質問 # 255
A network technician is investigating a trouble ticket for a user who does not have network connectivity. All patch cables between the wall jacks and computers in the building were upgraded over the weekend from Cat
5 to Cat 6. The newly installed cable is crimped with a TIA/EIA 568A on one end and a TIA/EIA 568B on the other end.
Which of the following should the technician do to MOST likely fix the issue?
- A. Ensure the switchport has PoE enabled.
- B. Crimp the cable as a straight-through cable.
- C. Ensure the switchport has STP enabled.
- D. Crimp the cable as a rollover cable.
正解：B
解説：
Explanation
A straight-through cable is a type of twisted pair cable that has the same wiring standard (TIA/EIA 568A or
568B) on both ends. This is the most common type of cable used for connecting devices of different types, such as a computer and a switch. A cable that has different wiring standards on each end (TIA/EIA 568A on one end and 568B on the other) is called a crossover cable, which is used for connecting devices of the same type, such as two computers or two switches. Therefore, the technician should crimp the cable as a straight-through cable to fix the issue.
質問 # 256
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CompTIA Network+認定は、ネットワーク技術に関する知識と能力を証明することを目的とした、ネットワークプロフェッショナルにとって重要な資格です。この認定は、候補者が有線および無線ネットワークを設定、管理、トラブルシューティングするために必要な専門知識と技能を確認します。また、モバイルデバイスやクラウドコンピューティングなどの新興技術を含む、最新のテクノロジーにも対応しています。この認定は、ベンダー非依存であり、候補者が任意のネットワークシステムで作業し、さまざまな職場で働く自由を与えます。
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