Networking & Internet
HTTP and HTTPS, TCP/IP, DNS, caching, WebSocket and web request security.
0/209
- 1What is a computer network?Junior
- 2What types of computer networks are there?Junior
- 3What is LAN?Middle
- 4What does the term "network topology" mean?Middle
- 5What types of topologies exist?Middle
- 6What is point-to-point (P2P)?Middle
- 7What is network bandwidth?Middle
- 9What is a client-server network?Middle
- 10What is IPv4?Middle
- 11What parts does an IPv4 address consist of?Middle
- 12What is a subnet mask?Middle
- 13What is a broadcast address?Middle
- 14What are private IP addresses?Middle
- 16What is a subnet?Middle
- 17What is IPv6?Middle
- 18What is Ethernet?Middle
- 19What is a MAC address?Middle
- 20How is a MAC address structured?Middle
- 1What is the OSI model?Middle
- 2Name all the layers of the OSI model.Middle
- 3What is the main function of the OSI physical layer?Middle
- 4What does the OSI data link layer do?Middle
- 5What does the OSI network layer do?Middle
- 6What does the OSI transport layer do?Middle
- 8What does the OSI presentation layer do?Middle
- 9What does the OSI application layer do?Middle
- 10What is the TCP/IP model?Middle
- 11How does OSI differ from TCP/IP?Middle
- 12Name the layers of the TCP/IP model.Middle
- 13Which TCP/IP model layers relate to the OSI application layer?Middle
- 14Which OSI model layers are combined in the TCP/IP network access layer?Middle
- 15At what OSI layer does IP operate?Middle
- 16At what layer does TCP operate?Middle
- 18Why isn't the OSI model used directly in real networks?Middle
- 19Why is TCP/IP a practical model?Middle
- 20What is a protocol stack?Middle
- 21Why does dividing into layers simplify how networks work?Middle
- 1What is the physical layer of the OSI model?Middle
- 2What tasks does the physical layer solve?Middle
- 3What data is transmitted at the physical layer?Middle
- 4What units of measurement are used at the physical layer?Middle
- 5What is bit-level transmission?Middle
- 7What is signal encoding?Middle
- 8What is interference?Middle
- 9How does the physical layer deal with interference?Middle
- 10What is twisted pair?Middle
- 1What is the data link layer of the OSI model?Middle
- 2What tasks does the data link layer solve?Middle
- 3What place does the data link layer occupy in the OSI model?Middle
- 5How does the data link layer differ from the physical layer?Middle
- 6What is a frame?Middle
- 7What is the MAC sublayer?Middle
- 8What is the LLC sublayer?Middle
- 9Where is MAC implemented: in hardware or software?Middle
- 10What is a MAC address?Middle
- 11How long is a MAC address?Middle
- 13What is a multicast MAC address?Middle
- 14What is a broadcast MAC address?Middle
- 15Why are MAC addresses needed?Middle
- 16What is an Ethernet frame?Middle
- 17What fields does an Ethernet frame consist of?Middle
- 18Why does a minimum frame size exist?Middle
- 19What errors does the data link layer detect?Middle
- 20What is a network switch (switch)?Middle
- 21What is frame forwarding?Middle
- 22What is a VLAN?Middle
- 2What tasks does the network layer solve?Middle
- 3What types of addresses are used at the network layer?Middle
- 4What data is transmitted at the network layer?Middle
- 5What is a packet?Middle
- 6Why is the network layer considered "routable"?Middle
- 7What protocols work at the network layer?Middle
- 9How does IPv4 differ from IPv6?Middle
- 10What is the size of an IPv4 address?Middle
- 11In what form is an IP address stored?Middle
- 12What is a network address?Middle
- 13What is a host address?Middle
- 14What is a broadcast address?Middle
- 16How does a mask separate the network from the host?Middle
- 17What is a subnet?Middle
- 18How do you determine the size of a subnet?Middle
- 19What are private IP addresses?Middle
- 20What is routing?Middle
- 21What does a router do?Middle
- 23What is a route?Middle
- 24What is static routing?Middle
- 25Pros and cons of static routingMiddle
- 26What is dynamic routing?Middle
- 27When is dynamic routing used?Middle
- 1What is the transport layer of the OSI model?Middle
- 2What tasks does the transport layer solve?Middle
- 3What protocols operate at the transport layer?Middle
- 5What is the transport layer responsible for in an end-to-end connection?Middle
- 6What is a segment (segment)?Middle
- 7Why is the transport layer critical for applications?Middle
- 8What is a port?Middle
- 9What is the range of TCP/UDP ports?Middle
- 10What is a socket?Middle
- 11Can multiple applications use the same port?Middle
- 13What guarantees does TCP provide?Middle
- 14What guarantees does UDP provide?Middle
- 15Why is UDP called "unreliable"?Middle
- 16What is a TCP segment?Middle
- 17What fields make up a TCP header?Middle
- 18What is a sliding window?Middle
- 19How does TCP detect segment loss?Middle
- 20What fields make up a UDP header?Middle
- 22What happens when a UDP packet is lost?Middle
- 23What is multiplexing at the transport layer?Middle
- 24What is demultiplexing?Middle
- 1What is the application layer of the OSI model?Middle
- 2What tasks does the application layer solve?Middle
- 3Which protocols belong to the application layer?Middle
- 4Why is the application layer closest to the user?Middle
- 5What is client-server architecture?Middle
- 6What is a request (request)?Middle
- 8What is stateless interaction?Middle
- 9What is stateful interaction?Middle
- 10What is HTTP?Middle
- 11What is FTP?Middle
- 12What is SMTP?Middle
- 13What is POP3?Middle
- 14What is IMAP?Middle
- 15What is DNS?Middle
- 16What is WebSocket?Middle
- 1What is HTTP?Middle
- 2What port does HTTP run on by default?Middle
- 4What is an HTTP request?Middle
- 5What is an HTTP response?Middle
- 6What is the difference between HTTP/1.1 and HTTP/2?Middle
- 7What is an HTTP method?Middle
- 8What is GET used for?Middle
- 9What is POST used for?Middle
- 10What is PUT used for?Middle
- 11What is PATCH used for?Middle
- 12What is DELETE used for?Middle
- 14What are HTTP headers?Middle
- 15What is an HTTP status code?Middle
- 16What classes of HTTP codes exist?Middle
- 17What is HTTPS?Middle
- 18What is TLS?Middle
- 19What is a cookie?Middle
- 20Where are cookies stored?Middle
- 21What is an HttpOnly cookie?Middle
- 22What is REST?Middle
- 1What is DNS?Middle
- 2What problem does DNS solve?Middle
- 4At which OSI layer does DNS operate?Middle
- 5What is a domain name?Middle
- 6What is a DNS server?Middle
- 7What is a zone (DNS zone)?Middle
- 8What is DNS resolve?Middle
- 9What is a DNS record?Middle
- 10What is an A record?Middle
- 11What is CNAME?Middle
- 12What is an NS record?Middle
- 13What is a TXT record?Middle
- 15What is TTL in DNS?Middle
- 16What is DNS cache?Middle
- 17What protocol does DNS use?Middle
- 18What is DNSSEC?Middle
- 1What is network security?Middle
- 2What does the CIA triad mean?Middle
- 4Which OSI layers does network security affect?Middle
- 5Which OSI layers does network security affect?Middle
- 6What is a security policy?Middle
- 7What is zero trust?Middle
- 8What types of network attacks are there?Middle
- 9What is man-in-the-middle (MITM)?Middle
- 10What are flooding attacks?Middle
- 12What is Port Security?Middle
- 13What is IP spoofing?Middle
- 14What is ACL?Middle
- 15How does a standard ACL differ from an extended ACL?Middle
- 16What is a firewall?Middle
- 17What types of firewall are there?Middle
- 18What is IDS?Middle
- 19What is IPS?Middle
- 20What attacks are typical for L7?Middle
- 21What is SQL Injection?Middle
- 23What is CSRF?Middle
- 24What is WAF?Middle
- 25What is authentication?Middle
- 26What is authorization?Middle
- 27Why is encryption needed in networks?Middle
- 28What is DDoS?Middle
- 29What is rate limiting?Middle