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What is the purpose of a DNS server?

  • To resolve IP addresses to domain names
  • To assign IP addresses
  • To provide email services
  • To route packets
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Which type of cable is used to connect two switches directly?

  • Crossover
  • Straight-through
  • Console
  • Rollover
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Which layer of the OSI model does a switch operate at?

  • Data Link
  • Network
  • Transport
  • Physical
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What is the purpose of a default route?

  • To forward packets when no other route is known
  • To resolve IP addresses
  • To manage local traffic
  • To provide DNS services
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What does the acronym NAT stand for?

  • Network Address Translation
  • Network Access Translation
  • Network Address Transmission
  • Network Access Transmission
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What is the primary function of the Network layer?

  • Error detection and correction
  • Routing
  • Data formatting
  • End-to-end communication
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Which type of IP address is used to communicate within the same local network?

  • Public
  • Private
  • Loopback
  • Broadcast
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Which protocol is used for securely transmitting data over a network?

  • HTTP
  • HTTPS
  • FTP
  • SNMP
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Which type of IP address is assigned manually?

  • Static
  • Dynamic
  • Public
  • Private
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What is the primary function of a router?

  • To forward packets between networks
  • To connect devices within a network
  • To filter traffic
  • To assign IP addresses
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Which protocol is used to translate private IP addresses to public IP addresses?

  • DNS
  • DHCP
  • NAT
  • ARP
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What is the primary purpose of the ARP protocol?

  • To map IP addresses to MAC addresses
  • To assign IP addresses
  • To resolve domain names
  • To route packets
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Which protocol is used to resolve domain names to IP addresses?

  • DNS
  • DHCP
  • FTP
  • HTTP
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What is the purpose of a firewall?

  • To filter incoming and outgoing traffic
  • To manage IP addresses
  • To assign IP addresses
  • To provide DNS services
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Which layer of the OSI model is responsible for routing?

  • Data Link
  • Network
  • Transport
  • Session
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What is the function of a gateway in a network?

  • To connect different networks
  • To assign IP addresses
  • To filter traffic
  • To provide DNS services
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Which protocol is used for email transmission?

  • FTP
  • HTTP
  • SMTP
  • SNMP
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Which layer of the OSI model is responsible for data encryption?

  • Presentation
  • Application
  • Session
  • Transport
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What is the default administrative distance of OSPF?

  • 90
  • 100
  • 110
  • 120
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What is the primary purpose of the Transport layer in the OSI model?

  • To ensure data is error-free
  • To route packets
  • To provide data encryption
  • To format data
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Which protocol is used for secure remote access to a network device?

  • Telnet
  • HTTP
  • SSH
  • FTP
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What is the purpose of a VLAN?

  • Increase collision domains
  • Decrease broadcast domains
  • Increase broadcast domains
  • Create separate broadcast domains
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What is the range of Class A IP addresses?

  • 1.0.0.0 to 126.255.255.255
  • 128.0.0.0 to 191.255.255.255
  • 192.0.0.0 to 223.255.255.255
  • 224.0.0.0 to 239.255.255.255
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Which protocol is used to send error messages and operational information?

  • ICMP
  • HTTP
  • DNS
  • DHCP
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Which command displays the routing table on a Cisco router?

  • show interfaces
  • show ip route
  • show protocols
  • show version
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What does the acronym DHCP stand for?

  • Dynamic Host Configuration Protocol
  • Dynamic Host Control Protocol
  • Dynamic Host Communication Protocol
  • Dynamic Host Configuration Program
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Which type of cable is used to connect a computer to a switch?

  • Crossover
  • Straight-through
  • Console
  • Rollover
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Which type of address is assigned by a DHCP server?

  • Static
  • Dynamic
  • Public
  • Private
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What is the default administrative distance of RIP?

  • 90
  • 100
  • 110
  • 120
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Which layer of the OSI model does the IP protocol operate at?

  • Data Link
  • Network
  • Transport
  • Session
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