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Questions gratuites N10-008 — CompTIA Network+

Téléchargez gratuitement 60 questions d'entraînement pour la certification N10-008 proposée par CompTIA. Toutes les questions sont accompagnées de corrections détaillées avec explications techniques.

Caractéristiques de l'examen blanc

Code de certificationN10-008
ÉditeurCompTIA
Nombre de questions60
TypeQCM avec 4 réponses possibles
Niveaufoundation
CatégorieNetworking
Prix100% gratuit

Aperçu de 8 questions représentatives

Voici un échantillon aléatoire de 8 questions tirées de notre base d'entraînement N10-008. Pour accéder aux 60 questions complètes, lancez l'examen blanc gratuitement.

Question 1
Which command-line tool tests connectivity to a remote host by sending ICMP echo requests?
  1. ping
  2. nslookup
  3. netstat
  4. arp
Question 2
What prevents network devices from being accessible via default manufacturer credentials?
  1. Changing default passwords immediately after deployment
  2. Leaving default credentials unchanged
  3. Disabling password authentication
  4. Using same password across all devices
Question 3
Which private IP address ranges are defined in RFC 1918?
  1. 10.0.0.0/8, 172.16.0.0/12, 192.168.0.0/16
  2. 8.8.8.0/24, 1.1.1.0/24
  3. 127.0.0.0/8
  4. 169.254.0.0/16
  5. , 172.16.0.0-172.31.255.255 (Class B), 192.168.0.0-192.168.255.255 (Class C). Private addresses are non-routable on public internet, used internally with NAT for internet access. This conserves public IPv4 addresses while providing ample internal addressing. 8.8.8.8 is Google's public DNS, 127.0.0.0/8 is loopback (localhost), 169.254.0.0/16 is APIPA. Understanding private addressing is fundamental for network design, troubleshooting, and planning IPv4 address schemes. NAT translates between private and public addresses.
Question 4
Which port does HTTPS use by default?
  1. 443
  2. 80
  3. 22
  4. 3389
  5. Understanding standard ports is essential for firewall configuration, troubleshooting connectivity, and security assessments. HTTPS encryption protects confidentiality and integrity of web communications. Modern websites use HTTPS exclusively with HTTP redirecting to HTTPS. Security best practices require HTTPS for any sensitive data transmission.
Question 5
Which network documentation should be maintained?
  1. Network diagrams showing topology
  2. IP address assignments and DHCP scopes
  3. Configuration backups and change logs
  4. No documentation needed
Question 6
A company needs to segment their network to separate guest Wi-Fi from corporate resources. What technology accomplishes this on a single switch?
  1. VLAN (Virtual Local Area Network)
  2. NAT (Network Address Translation)
  3. DNS (Domain Name System)
  4. DHCP (Dynamic Host Configuration Protocol)
Question 7
Which security policies should be implemented?
  1. Acceptable use policy defining permitted activities
  2. Password policy requiring strong credentials
  3. Data classification policy protecting sensitive information
  4. No security policies
  5. policy secures personal devices. Policies provide framework for technical controls and user behavior expectations. No policies creates security gaps and unclear expectations. Policies should be documented, communicated, enforced, and regularly reviewed. Technical controls implement policy requirements through firewalls, authentication, encryption, monitoring.
Question 8
What prevents unauthorized DHCP servers from distributing incorrect network configuration?
  1. DHCP snooping
  2. Port security
  3. VPN
  4. DNS forwarding

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