Which four are valid Oracle constraint types? （）

A . NetFlow records bidirectional IP traffic flow. B . NetFlow export can be implemented over IPv4. C . NetFlow export can be implemented over IPv6. D . NetFlow records multicast IP traffic flow. E . NetFlow records ingress traffic. F . NetFlow records egress traffic.

A . 169.254.23.59 B . 223.254.255.254 C . 225.1.1.1 D . 227.43.34.2 E . 238.3.3.3 F . 249.1.2.3

A . _class B . $value$ C . zer@ D . ¥ngstr E . 2muchuq

A . Magic  B . Plain  C . Check  D . List item  E . Divider

A . Has-a relationships should never be encapsulated. B . Has-a relationships should be implemented using inheritance. C . Has-a relationships can be implemented using instance variables. D . Is-a relationships can be implemented using the extends keyword. E . Is-a relationships can be implemented using the implements keyword. F . An array or a collection can be used to implement a one-to-many has-a relationship.

A .  Has-a relationships should never be encapsulated. B .  Has-a relationships should be implemented using inheritance. C .  Has-a relationships can be implemented using instance variables. D .  Is-a relationships can be implemented using the extends keyword. E .  Is-a relationships can be implemented using the implements keyword. F .  An array or a collection can be used to implement a one-to-many has-a relationship. G .  The relationship between Movie and Actress is an example of an is-a relationship.

A . <%! int i； %> B . <%= int i； %> C . <jsp：expr>int i；</jsp：expr> D . <jsp：scriptlet>int i；</jsp：scriptlet> E . <jsp：declaration>int i；</jsp：declaration&gt

A . IPCC Express communicating with the ICM via a standalone IPCC Gateway PG running on an expansion server   B . IPCC Express communicating with the ICM via a co-resident IPCC Gateway PG C . IPCC Express using the IPCC Enterprise Outbound option   D . IPCC Express using the IPCC Enterprise CTI-OS Toolkit   E . IP IVR integrating with IPCC Enterprise to function as queue point and self-service platform

A . x.a2（）； B . z.a2（）； C . z.c1（）； D . z.a1（）； E . y.c1（）； F . x.a1（）；

A . PPP B . WAP C . HDLC D . MPLS E . L2TPv3 F . ATM

A . LDP hello packets are sent to UDP port 646 B . LDP hello packets are sent to TCP port 711 C . LDP sessions are TCP sessions to port 646 D . LDP sessions are TCP sessions to port 711 E . LDP establishes a peer relationship with another router that must be directly attached F . LDP can establishes a peer relationship with another router that is not directly attached

A . High Availability CRS Engines running on hardware from different server classes  B . High Availability CRS Engines running on similar hardware from the same server class but from different vendors  C . High Availability CRS Engines and database and a simplex Recording Server  D . High Availability CRS Engines and four simplex VoIP Monitoring Servers  E . CCM co-resident deployment on an MCS 7815

A . cannot be nested B . manipulate data items C . act on each row returned D . return one result per row E . accept only one argument and return only one value F . accept arguments which can be a column or an expressio

A . PPP B . WAP C . DSL D . Ethernet E . L2TPv3

A . Has a maximum hop count of 25 B . Can differentiate between internal and external routes C . Uses a 32-bit metric D . Can maintain only one routing table E . Need all networks to use the same subnet mask F . Supports only one routed protocol

A .  Float foo = -1； B .  Float foo = 1.0； C .  Float foo = 42e1； D .  Float foo = 2.02f； E .  Float foo = 3.03d； F .  Float foo = 0x0123；

A .  void methoda（）； B .  public double methoda（）； C .  public final double methoda（）； D .  static void methoda（double d1）； E .  protected void methoda（double d1）；

A .  float foo = -1； B .  float foo = 1.0； C .  float foo = 42el： D .  float foo = 2.02f： E .  float foo = 3.03d：

A . NAT B . VPN C . STP D . Security Audit

A .https://assets.asklib.com/images/image2/2018073115112695987.jpg B .https://assets.asklib.com/images/image2/2018073115114664903.jpg C .https://assets.asklib.com/images/image2/2018073115123688801.jpg D .https://assets.asklib.com/images/image2/2018073115124427624.jpg E .https://assets.asklib.com/images/image2/2018073115125392737.jpg

A .https://assets.asklib.com/images/image2/2018073110210939625.png B .https://assets.asklib.com/images/image2/2018073110211734462.png C .https://assets.asklib.com/images/image2/2018073110213254511.png D .https://assets.asklib.com/images/image2/2018073110214023955.png

A .  SCN B .  Timestamp C .  Named recovery point D .  Transaction ID E .  Session ID

A .  Source and destination interface must be on the same host B .  Source and destination interfaces can be on different hosts C .  Destination vEthernet interface can be on a different VLAN than the source D .  Destination interface can be a physical port E .  Destination interface cannot be a physical port

A .  float f = 1F； B .  float f = 1.0.； C .  float f = ‘1’； D .  float f = “1”； E .  float f = 1.0d；